diff --git a/apps/api-gateway/src/controllers/admin.controller.ts b/apps/api-gateway/src/controllers/admin.controller.ts
index ecc6db2..bbc870f 100644
--- a/apps/api-gateway/src/controllers/admin.controller.ts
+++ b/apps/api-gateway/src/controllers/admin.controller.ts
@@ -1,10 +1,10 @@
-import { Body, Controller, ForbiddenException, Get, Param, Patch, Post, Query, UseGuards } from '@nestjs/common';
+import { BadRequestException, Body, Controller, Delete, ForbiddenException, Get, Param, Patch, Post, Query, UseGuards } from '@nestjs/common';
 import { ApiBearerAuth, ApiBody, ApiOperation, ApiParam, ApiTags } from '@nestjs/swagger';
 import { firstValueFrom } from 'rxjs';
 import { map } from 'rxjs';
 import { CoreGrpcService } from '../core-grpc.service';
 import { CurrentAdmin } from '../decorators/current-admin.decorator';
-import { ListUsersQueryDto, ResetPasswordDto, SetSuperAdminDto, SetUserVerificationDto, UpdateUserDto } from '../dto/admin.dto';
+import { ListUsersQueryDto, ResetPasswordDto, SetSuperAdminDto, SetUserVerificationDto, UpdateUserDto, UserInsightsQueryDto } from '../dto/admin.dto';
 import { AdminGuard, AdminRequestUser, assertAdminPermission, SuperAdminGuard } from '../guards/admin.guard';
 
 @ApiTags('Администрирование')
@@ -124,4 +124,112 @@ export class AdminController {
       verificationIcon: dto.verificationIcon
     });
   }
+
+  @Get(':userId/sign-in-history')
+  @ApiOperation({ summary: 'История входов пользователя', description: 'Журнал SignInEvent с поиском по IP, устройству и причине.' })
+  getUserSignInHistory(@Param('userId') userId: string, @Query() query: UserInsightsQueryDto, @CurrentAdmin() admin: AdminRequestUser) {
+    if (!admin.canViewUsers && !admin.canManageUsers) {
+      throw new ForbiddenException('Недостаточно прав для просмотра журнала пользователя');
+    }
+    return firstValueFrom(
+      this.core.admin.GetUserSignInHistory({
+        userId,
+        search: query.search,
+        limit: query.limit,
+        offset: query.offset
+      })
+    );
+  }
+
+  @Get(':userId/activity')
+  @ApiOperation({ summary: 'Активность пользователя', description: 'Созданные документы, чаты, семьи, OAuth-согласия и журнал действий.' })
+  getUserActivity(@Param('userId') userId: string, @Query() query: UserInsightsQueryDto, @CurrentAdmin() admin: AdminRequestUser) {
+    if (!admin.canViewUsers && !admin.canManageUsers) {
+      throw new ForbiddenException('Недостаточно прав для просмотра активности пользователя');
+    }
+    return firstValueFrom(
+      this.core.admin.GetUserActivity({
+        userId,
+        search: query.search,
+        limit: query.limit,
+        offset: query.offset
+      })
+    );
+  }
+
+  @Get(':userId/chats')
+  @ApiOperation({ summary: 'Чаты пользователя для модерации', description: 'Обычные чаты без E2E и ботов.' })
+  listUserChats(@Param('userId') userId: string, @Query() query: UserInsightsQueryDto, @CurrentAdmin() admin: AdminRequestUser) {
+    if (!admin.canModerateChats && !admin.isSuperAdmin) {
+      throw new ForbiddenException('Недостаточно прав для модерации чатов');
+    }
+    return firstValueFrom(
+      this.core.admin.ListUserChatRooms({
+        userId,
+        search: query.search,
+        limit: query.limit,
+        offset: query.offset
+      })
+    );
+  }
+
+  @Get(':userId/chats/search')
+  @ApiOperation({ summary: 'Поиск по сообщениям пользователя', description: 'Поиск по обычным (не E2E) перепискам пользователя.' })
+  searchUserChats(@Param('userId') userId: string, @Query() query: UserInsightsQueryDto, @CurrentAdmin() admin: AdminRequestUser) {
+    if (!admin.canModerateChats && !admin.isSuperAdmin) {
+      throw new ForbiddenException('Недостаточно прав для модерации чатов');
+    }
+    if (!query.search?.trim()) {
+      throw new BadRequestException('Укажите параметр search');
+    }
+    return firstValueFrom(
+      this.core.admin.SearchUserChatMessages({
+        userId,
+        search: query.search.trim(),
+        limit: query.limit,
+        offset: query.offset
+      })
+    );
+  }
+
+  @Get(':userId/chats/:roomId/messages')
+  @ApiOperation({ summary: 'Сообщения чата пользователя', description: 'Просмотр переписки в обычном чате для модерации.' })
+  listUserChatMessages(
+    @Param('userId') userId: string,
+    @Param('roomId') roomId: string,
+    @Query() query: UserInsightsQueryDto,
+    @CurrentAdmin() admin: AdminRequestUser
+  ) {
+    if (!admin.canModerateChats && !admin.isSuperAdmin) {
+      throw new ForbiddenException('Недостаточно прав для модерации чатов');
+    }
+    return firstValueFrom(
+      this.core.admin.ListUserChatMessages({
+        userId,
+        roomId,
+        search: query.search,
+        limit: query.limit,
+        beforeMessageId: query.beforeMessageId
+      })
+    );
+  }
+
+  @Delete(':userId/chat-messages/:messageId')
+  @ApiOperation({ summary: 'Удалить сообщение (модерация)', description: 'Мягкое удаление сообщения в обычном чате.' })
+  deleteUserChatMessage(
+    @Param('userId') userId: string,
+    @Param('messageId') messageId: string,
+    @CurrentAdmin() admin: AdminRequestUser
+  ) {
+    if (!admin.canModerateChats && !admin.isSuperAdmin) {
+      throw new ForbiddenException('Недостаточно прав для модерации чатов');
+    }
+    void userId;
+    return firstValueFrom(
+      this.core.admin.AdminDeleteChatMessage({
+        actorUserId: admin.id,
+        messageId
+      })
+    );
+  }
 }
diff --git a/apps/api-gateway/src/dto/admin.dto.ts b/apps/api-gateway/src/dto/admin.dto.ts
index a35face..c50dd9c 100644
--- a/apps/api-gateway/src/dto/admin.dto.ts
+++ b/apps/api-gateway/src/dto/admin.dto.ts
@@ -69,3 +69,23 @@ export class SetUserVerificationDto {
   @IsString({ message: 'Значок должен быть строкой' })
   verificationIcon?: string;
 }
+
+export class UserInsightsQueryDto {
+  @ApiPropertyOptional({ description: 'Поиск по событиям, IP, user-agent, тексту активности или чатам' })
+  @IsOptional()
+  @IsString({ message: 'Поисковая строка должна быть текстом' })
+  search?: string;
+
+  @ApiPropertyOptional({ description: 'Лимит записей', default: 50 })
+  @IsOptional()
+  limit?: number;
+
+  @ApiPropertyOptional({ description: 'Смещение для пагинации', default: 0 })
+  @IsOptional()
+  offset?: number;
+
+  @ApiPropertyOptional({ description: 'ID сообщения для пагинации истории чата' })
+  @IsOptional()
+  @IsString({ message: 'beforeMessageId должно быть строкой' })
+  beforeMessageId?: string;
+}
diff --git a/apps/api-gateway/src/guards/admin.guard.ts b/apps/api-gateway/src/guards/admin.guard.ts
index 66620ee..7d002f1 100644
--- a/apps/api-gateway/src/guards/admin.guard.ts
+++ b/apps/api-gateway/src/guards/admin.guard.ts
@@ -17,6 +17,7 @@ export interface AdminRequestUser {
   canViewUsers: boolean;
   canManageSettings: boolean;
   canVerifyUsers: boolean;
+  canModerateChats: boolean;
   roles: string[];
   permissions: string[];
 }
@@ -60,6 +61,7 @@ export class AdminGuard implements CanActivate {
       canManageSettings: Boolean(profile.canManageSettings),
       canViewUsers: Boolean(profile.canViewUsers),
       canVerifyUsers: Boolean(profile.canVerifyUsers),
+      canModerateChats: Boolean(profile.canModerateChats),
       roles: profile.roles ?? [],
       permissions: profile.permissions ?? []
     };
diff --git a/apps/frontend/app/admin/users/page.tsx b/apps/frontend/app/admin/users/page.tsx
index e9c7d11..d632467 100644
--- a/apps/frontend/app/admin/users/page.tsx
+++ b/apps/frontend/app/admin/users/page.tsx
@@ -2,7 +2,8 @@
 
 import { useCallback, useEffect, useMemo, useState } from 'react';
 import { useRouter } from 'next/navigation';
-import { Ban, BadgeCheck, Crown, FileText, KeyRound, Loader2, Search, ShieldOff, ShieldPlus, UserCheck, UserCog } from 'lucide-react';
+import { Ban, BadgeCheck, Crown, FileText, KeyRound, Loader2, ScrollText, Search, ShieldOff, ShieldPlus, UserCheck, UserCog } from 'lucide-react';
+import { UserInspectorDialog } from '@/components/admin/user-inspector-dialog';
 import { VerificationBadge } from '@/components/id/verification-badge';
 import { UserDocumentsDialog } from '@/components/documents/user-documents-dialog';
 import { AdminShell } from '@/components/id/admin-shell';
@@ -47,6 +48,7 @@ export default function AdminUsersPage() {
   const [actionLoading, setActionLoading] = useState(false);
   const [dialog, setDialog] = useState<'password' | 'roles' | 'verification' | null>(null);
   const [documentsUser, setDocumentsUser] = useState<AdminUser | null>(null);
+  const [inspectorUser, setInspectorUser] = useState<AdminUser | null>(null);
   const [verificationIcon, setVerificationIcon] = useState(DEFAULT_VERIFICATION_ICON);
 
   const loadUsers = useCallback(async () => {
@@ -344,7 +346,14 @@ export default function AdminUsersPage() {
             </TableHeader>
             <TableBody>
               {users.map((user) => (
-                <TableRow key={user.id}>
+                <TableRow
+                  key={user.id}
+                  className={user.isBot ? undefined : 'cursor-pointer hover:bg-[#fafbff]'}
+                  onClick={() => {
+                    if (user.isBot) return;
+                    setInspectorUser(user);
+                  }}
+                >
                   <TableCell>
                     <div className="flex items-center gap-2">
                       <span className="font-medium">{user.displayName}</span>
@@ -358,7 +367,17 @@ export default function AdminUsersPage() {
                     <span className="rounded-full bg-[#f4f5f8] px-3 py-1 text-xs font-semibold">{statusLabels[user.status] ?? user.status}</span>
                   </TableCell>
                   <TableCell>
-                    <div className="flex justify-end gap-2">
+                    <div className="flex justify-end gap-2" onClick={(event) => event.stopPropagation()}>
+                      {(currentUser?.canViewUsers || currentUser?.canManageUsers) && !user.isBot ? (
+                        <Button
+                          variant="secondary"
+                          size="icon"
+                          aria-label="Журнал и чаты"
+                          onClick={() => setInspectorUser(user)}
+                        >
+                          <ScrollText className="h-4 w-4" />
+                        </Button>
+                      ) : null}
                       {currentUser?.canManageUsers ? (
                         <>
                           <Button
@@ -586,6 +605,16 @@ export default function AdminUsersPage() {
           token={token}
         />
       ) : null}
+
+      <UserInspectorDialog
+        user={inspectorUser}
+        token={token}
+        canModerateChats={Boolean(currentUser?.canModerateChats || currentUser?.isSuperAdmin)}
+        open={Boolean(inspectorUser)}
+        onOpenChange={(open) => {
+          if (!open) setInspectorUser(null);
+        }}
+      />
     </AdminShell>
   );
 }
diff --git a/apps/frontend/components/admin/user-inspector-dialog.tsx b/apps/frontend/components/admin/user-inspector-dialog.tsx
new file mode 100644
index 0000000..b9237db
--- /dev/null
+++ b/apps/frontend/components/admin/user-inspector-dialog.tsx
@@ -0,0 +1,580 @@
+'use client';
+
+import { useCallback, useEffect, useMemo, useState } from 'react';
+import {
+  Activity,
+  CheckCircle2,
+  Loader2,
+  MessageSquare,
+  Search,
+  ShieldAlert,
+  Trash2,
+  XCircle
+} from 'lucide-react';
+import { VerificationBadge } from '@/components/id/verification-badge';
+import { useToast } from '@/components/id/toast-provider';
+import { Button } from '@/components/ui/button';
+import { Dialog, DialogContent, DialogHeader, DialogTitle } from '@/components/ui/dialog';
+import { Input } from '@/components/ui/input';
+import { Tabs, TabsContent, TabsList, TabsTrigger } from '@/components/ui/tabs';
+import {
+  AdminChatMessage,
+  AdminChatRoomSummary,
+  AdminUser,
+  AdminUserActivityItem,
+  SignInEvent,
+  apiFetch
+} from '@/lib/api';
+import { cn } from '@/lib/utils';
+
+function formatDateTime(value: string) {
+  return new Intl.DateTimeFormat('ru-RU', {
+    day: '2-digit',
+    month: 'short',
+    year: 'numeric',
+    hour: '2-digit',
+    minute: '2-digit'
+  }).format(new Date(value));
+}
+
+function useDebouncedValue<T>(value: T, delayMs = 350) {
+  const [debounced, setDebounced] = useState(value);
+  useEffect(() => {
+    const timer = window.setTimeout(() => setDebounced(value), delayMs);
+    return () => window.clearTimeout(timer);
+  }, [delayMs, value]);
+  return debounced;
+}
+
+const roomTypeLabels: Record<string, string> = {
+  GENERAL: 'Общий',
+  DIRECT: 'Личный',
+  GROUP: 'Группа'
+};
+
+export function UserInspectorDialog({
+  user,
+  token,
+  canModerateChats,
+  open,
+  onOpenChange
+}: {
+  user: AdminUser | null;
+  token: string | null;
+  canModerateChats: boolean;
+  open: boolean;
+  onOpenChange: (open: boolean) => void;
+}) {
+  const { showToast } = useToast();
+  const [tab, setTab] = useState('sign-in');
+
+  const [signInSearch, setSignInSearch] = useState('');
+  const [activitySearch, setActivitySearch] = useState('');
+  const [chatSearch, setChatSearch] = useState('');
+  const [messageSearch, setMessageSearch] = useState('');
+  const [globalMessageSearch, setGlobalMessageSearch] = useState('');
+
+  const debouncedSignInSearch = useDebouncedValue(signInSearch);
+  const debouncedActivitySearch = useDebouncedValue(activitySearch);
+  const debouncedChatSearch = useDebouncedValue(chatSearch);
+  const debouncedMessageSearch = useDebouncedValue(messageSearch);
+  const debouncedGlobalMessageSearch = useDebouncedValue(globalMessageSearch);
+
+  const [signInEvents, setSignInEvents] = useState<SignInEvent[]>([]);
+  const [signInTotal, setSignInTotal] = useState(0);
+  const [activityItems, setActivityItems] = useState<AdminUserActivityItem[]>([]);
+  const [activityTotal, setActivityTotal] = useState(0);
+  const [rooms, setRooms] = useState<AdminChatRoomSummary[]>([]);
+  const [roomsTotal, setRoomsTotal] = useState(0);
+  const [selectedRoomId, setSelectedRoomId] = useState<string | null>(null);
+  const [roomMessages, setRoomMessages] = useState<AdminChatMessage[]>([]);
+  const [roomContext, setRoomContext] = useState<{ name: string; groupName: string; type: string } | null>(null);
+  const [searchResults, setSearchResults] = useState<AdminChatMessage[]>([]);
+  const [searchTotal, setSearchTotal] = useState(0);
+
+  const [loadingSignIn, setLoadingSignIn] = useState(false);
+  const [loadingActivity, setLoadingActivity] = useState(false);
+  const [loadingRooms, setLoadingRooms] = useState(false);
+  const [loadingMessages, setLoadingMessages] = useState(false);
+  const [loadingSearch, setLoadingSearch] = useState(false);
+  const [deletingMessageId, setDeletingMessageId] = useState<string | null>(null);
+
+  const selectedRoom = useMemo(() => rooms.find((room) => room.id === selectedRoomId) ?? null, [rooms, selectedRoomId]);
+
+  const loadSignIn = useCallback(async () => {
+    if (!token || !user) return;
+    setLoadingSignIn(true);
+    try {
+      const params = new URLSearchParams();
+      if (debouncedSignInSearch.trim()) params.set('search', debouncedSignInSearch.trim());
+      params.set('limit', '50');
+      const response = await apiFetch<{ total: number; events: SignInEvent[] }>(
+        `/admin/users/${user.id}/sign-in-history?${params.toString()}`,
+        {},
+        token
+      );
+      setSignInEvents(response.events ?? []);
+      setSignInTotal(response.total ?? 0);
+    } catch (error) {
+      showToast(error instanceof Error ? error.message : 'Не удалось загрузить историю входов');
+    } finally {
+      setLoadingSignIn(false);
+    }
+  }, [debouncedSignInSearch, showToast, token, user]);
+
+  const loadActivity = useCallback(async () => {
+    if (!token || !user) return;
+    setLoadingActivity(true);
+    try {
+      const params = new URLSearchParams();
+      if (debouncedActivitySearch.trim()) params.set('search', debouncedActivitySearch.trim());
+      params.set('limit', '50');
+      const response = await apiFetch<{ total: number; items: AdminUserActivityItem[] }>(
+        `/admin/users/${user.id}/activity?${params.toString()}`,
+        {},
+        token
+      );
+      setActivityItems(response.items ?? []);
+      setActivityTotal(response.total ?? 0);
+    } catch (error) {
+      showToast(error instanceof Error ? error.message : 'Не удалось загрузить активность');
+    } finally {
+      setLoadingActivity(false);
+    }
+  }, [debouncedActivitySearch, showToast, token, user]);
+
+  const loadRooms = useCallback(async () => {
+    if (!token || !user || !canModerateChats) return;
+    setLoadingRooms(true);
+    try {
+      const params = new URLSearchParams();
+      if (debouncedChatSearch.trim()) params.set('search', debouncedChatSearch.trim());
+      params.set('limit', '50');
+      const response = await apiFetch<{ total: number; rooms: AdminChatRoomSummary[] }>(
+        `/admin/users/${user.id}/chats?${params.toString()}`,
+        {},
+        token
+      );
+      setRooms(response.rooms ?? []);
+      setRoomsTotal(response.total ?? 0);
+    } catch (error) {
+      showToast(error instanceof Error ? error.message : 'Не удалось загрузить чаты');
+    } finally {
+      setLoadingRooms(false);
+    }
+  }, [canModerateChats, debouncedChatSearch, showToast, token, user]);
+
+  const loadRoomMessages = useCallback(async () => {
+    if (!token || !user || !selectedRoomId) return;
+    setLoadingMessages(true);
+    try {
+      const params = new URLSearchParams();
+      if (debouncedMessageSearch.trim()) params.set('search', debouncedMessageSearch.trim());
+      params.set('limit', '80');
+      const response = await apiFetch<{
+        room?: { id: string; name: string; type: string; groupName: string };
+        messages: AdminChatMessage[];
+      }>(`/admin/users/${user.id}/chats/${selectedRoomId}/messages?${params.toString()}`, {}, token);
+      setRoomMessages(response.messages ?? []);
+      setRoomContext(
+        response.room
+          ? { name: response.room.name, groupName: response.room.groupName, type: response.room.type }
+          : null
+      );
+    } catch (error) {
+      showToast(error instanceof Error ? error.message : 'Не удалось загрузить сообщения');
+    } finally {
+      setLoadingMessages(false);
+    }
+  }, [debouncedMessageSearch, selectedRoomId, showToast, token, user]);
+
+  const loadGlobalSearch = useCallback(async () => {
+    if (!token || !user || !canModerateChats || !debouncedGlobalMessageSearch.trim()) {
+      setSearchResults([]);
+      setSearchTotal(0);
+      return;
+    }
+    setLoadingSearch(true);
+    try {
+      const params = new URLSearchParams();
+      params.set('search', debouncedGlobalMessageSearch.trim());
+      params.set('limit', '50');
+      const response = await apiFetch<{ total: number; messages: AdminChatMessage[] }>(
+        `/admin/users/${user.id}/chats/search?${params.toString()}`,
+        {},
+        token
+      );
+      setSearchResults(response.messages ?? []);
+      setSearchTotal(response.total ?? 0);
+    } catch (error) {
+      showToast(error instanceof Error ? error.message : 'Не удалось выполнить поиск');
+    } finally {
+      setLoadingSearch(false);
+    }
+  }, [canModerateChats, debouncedGlobalMessageSearch, showToast, token, user]);
+
+  useEffect(() => {
+    if (!open || !user) return;
+    if (tab === 'sign-in') void loadSignIn();
+  }, [loadSignIn, open, tab, user]);
+
+  useEffect(() => {
+    if (!open || !user) return;
+    if (tab === 'activity') void loadActivity();
+  }, [loadActivity, open, tab, user]);
+
+  useEffect(() => {
+    if (!open || !user || !canModerateChats) return;
+    if (tab === 'chats') void loadRooms();
+  }, [canModerateChats, loadRooms, open, tab, user]);
+
+  useEffect(() => {
+    if (!open || !user || !selectedRoomId) return;
+    void loadRoomMessages();
+  }, [loadRoomMessages, open, selectedRoomId, user]);
+
+  useEffect(() => {
+    if (!open || !user || tab !== 'chats') return;
+    void loadGlobalSearch();
+  }, [loadGlobalSearch, open, tab, user]);
+
+  useEffect(() => {
+    if (!open) {
+      setTab('sign-in');
+      setSignInSearch('');
+      setActivitySearch('');
+      setChatSearch('');
+      setMessageSearch('');
+      setGlobalMessageSearch('');
+      setSelectedRoomId(null);
+      setRoomMessages([]);
+      setSearchResults([]);
+    }
+  }, [open]);
+
+  async function handleDeleteMessage(messageId: string) {
+    if (!token || !user || !canModerateChats) return;
+    const confirmed = window.confirm('Удалить это сообщение? Действие необратимо для пользователей чата.');
+    if (!confirmed) return;
+    setDeletingMessageId(messageId);
+    try {
+      await apiFetch(`/admin/users/${user.id}/chat-messages/${messageId}`, { method: 'DELETE' }, token);
+      setRoomMessages((prev) => prev.filter((item) => item.id !== messageId));
+      setSearchResults((prev) => prev.filter((item) => item.id !== messageId));
+      showToast('Сообщение удалено');
+    } catch (error) {
+      showToast(error instanceof Error ? error.message : 'Не удалось удалить сообщение');
+    } finally {
+      setDeletingMessageId(null);
+    }
+  }
+
+  if (!user) return null;
+
+  return (
+    <Dialog open={open} onOpenChange={onOpenChange}>
+      <DialogContent className="flex max-h-[90vh] w-[min(960px,calc(100vw-2rem))] flex-col gap-0 overflow-hidden p-0">
+        <DialogHeader className="border-b border-[#eceef4] px-6 py-5">
+          <DialogTitle className="flex items-center gap-3 text-left text-xl font-semibold">
+            <span>{user.displayName}</span>
+            {user.isVerified ? <VerificationBadge verificationIcon={user.verificationIcon} size="sm" /> : null}
+          </DialogTitle>
+          <p className="text-left text-sm text-[#667085]">
+            {[user.email, user.phone, user.username].filter(Boolean).join(' · ') || 'Контакты не указаны'}
+          </p>
+        </DialogHeader>
+
+        <Tabs value={tab} onValueChange={setTab} className="flex min-h-0 flex-1 flex-col">
+          <div className="border-b border-[#eceef4] px-6 pt-4">
+            <TabsList className="grid w-full grid-cols-3">
+              <TabsTrigger value="sign-in" className="gap-2">
+                <ShieldAlert className="h-4 w-4" />
+                Входы
+              </TabsTrigger>
+              <TabsTrigger value="activity" className="gap-2">
+                <Activity className="h-4 w-4" />
+                Активность
+              </TabsTrigger>
+              <TabsTrigger value="chats" className="gap-2" disabled={!canModerateChats}>
+                <MessageSquare className="h-4 w-4" />
+                Чаты
+              </TabsTrigger>
+            </TabsList>
+          </div>
+
+          <TabsContent value="sign-in" className="mt-0 flex min-h-0 flex-1 flex-col gap-4 overflow-hidden px-6 py-4">
+            <div className="relative">
+              <Search className="pointer-events-none absolute left-3 top-1/2 h-4 w-4 -translate-y-1/2 text-[#667085]" />
+              <Input
+                value={signInSearch}
+                onChange={(event) => setSignInSearch(event.target.value)}
+                placeholder="Поиск по IP, устройству, user-agent, причине..."
+                className="pl-10"
+              />
+            </div>
+            <p className="text-xs text-[#667085]">Найдено: {signInTotal}</p>
+            <div className="min-h-0 flex-1 overflow-y-auto rounded-2xl border border-[#eceef4]">
+              {loadingSignIn ? (
+                <div className="flex items-center justify-center gap-2 py-16 text-[#667085]">
+                  <Loader2 className="h-5 w-5 animate-spin" />
+                  Загрузка...
+                </div>
+              ) : signInEvents.length ? (
+                <div className="divide-y divide-[#eceef4]">
+                  {signInEvents.map((event) => (
+                    <div key={event.id} className="flex gap-3 px-4 py-3">
+                      {event.success ? (
+                        <CheckCircle2 className="mt-0.5 h-5 w-5 shrink-0 text-emerald-600" />
+                      ) : (
+                        <XCircle className="mt-0.5 h-5 w-5 shrink-0 text-red-500" />
+                      )}
+                      <div className="min-w-0 flex-1">
+                        <div className="flex flex-wrap items-center gap-2">
+                          <span className="font-medium">{event.success ? 'Успешный вход' : 'Неудачная попытка'}</span>
+                          <span className="text-xs text-[#667085]">{formatDateTime(event.createdAt)}</span>
+                        </div>
+                        <p className="mt-1 text-sm text-[#667085]">
+                          {[event.deviceName, event.ipAddress].filter(Boolean).join(' · ') || 'Устройство не определено'}
+                        </p>
+                        {event.reason ? <p className="mt-1 text-sm text-red-600">{event.reason}</p> : null}
+                        {event.userAgent ? (
+                          <p className="mt-1 truncate text-xs text-[#98a2b3]" title={event.userAgent}>
+                            {event.userAgent}
+                          </p>
+                        ) : null}
+                      </div>
+                    </div>
+                  ))}
+                </div>
+              ) : (
+                <p className="py-16 text-center text-sm text-[#667085]">События входа не найдены</p>
+              )}
+            </div>
+          </TabsContent>
+
+          <TabsContent value="activity" className="mt-0 flex min-h-0 flex-1 flex-col gap-4 overflow-hidden px-6 py-4">
+            <div className="relative">
+              <Search className="pointer-events-none absolute left-3 top-1/2 h-4 w-4 -translate-y-1/2 text-[#667085]" />
+              <Input
+                value={activitySearch}
+                onChange={(event) => setActivitySearch(event.target.value)}
+                placeholder="Поиск по действиям, документам, чатам, OAuth..."
+                className="pl-10"
+              />
+            </div>
+            <p className="text-xs text-[#667085]">Найдено: {activityTotal}</p>
+            <div className="min-h-0 flex-1 overflow-y-auto rounded-2xl border border-[#eceef4]">
+              {loadingActivity ? (
+                <div className="flex items-center justify-center gap-2 py-16 text-[#667085]">
+                  <Loader2 className="h-5 w-5 animate-spin" />
+                  Загрузка...
+                </div>
+              ) : activityItems.length ? (
+                <div className="divide-y divide-[#eceef4]">
+                  {activityItems.map((item) => (
+                    <div key={item.id} className="px-4 py-3">
+                      <div className="flex flex-wrap items-center gap-2">
+                        <span className="font-medium">{item.title}</span>
+                        <span className="rounded-full bg-[#f4f5f8] px-2 py-0.5 text-[10px] font-semibold uppercase tracking-wide text-[#667085]">
+                          {item.action}
+                        </span>
+                        <span className="text-xs text-[#667085]">{formatDateTime(item.createdAt)}</span>
+                      </div>
+                      {item.detail ? <p className="mt-1 text-sm text-[#667085]">{item.detail}</p> : null}
+                    </div>
+                  ))}
+                </div>
+              ) : (
+                <p className="py-16 text-center text-sm text-[#667085]">Активность не найдена</p>
+              )}
+            </div>
+          </TabsContent>
+
+          <TabsContent value="chats" className="mt-0 flex min-h-0 flex-1 flex-col gap-4 overflow-hidden px-6 py-4">
+            {!canModerateChats ? (
+              <p className="py-8 text-center text-sm text-[#667085]">Недостаточно прав для модерации чатов</p>
+            ) : (
+              <>
+                <div className="relative">
+                  <Search className="pointer-events-none absolute left-3 top-1/2 h-4 w-4 -translate-y-1/2 text-[#667085]" />
+                  <Input
+                    value={globalMessageSearch}
+                    onChange={(event) => setGlobalMessageSearch(event.target.value)}
+                    placeholder="Глобальный поиск по сообщениям пользователя..."
+                    className="pl-10"
+                  />
+                </div>
+                {debouncedGlobalMessageSearch.trim() ? (
+                  <div className="rounded-2xl border border-[#eceef4] bg-[#fafbff] p-3">
+                    <p className="mb-2 text-xs font-medium text-[#667085]">
+                      Результаты поиска по сообщениям: {searchTotal}
+                    </p>
+                    {loadingSearch ? (
+                      <div className="flex items-center gap-2 py-4 text-sm text-[#667085]">
+                        <Loader2 className="h-4 w-4 animate-spin" />
+                        Поиск...
+                      </div>
+                    ) : searchResults.length ? (
+                      <div className="max-h-40 space-y-2 overflow-y-auto">
+                        {searchResults.map((message) => (
+                          <button
+                            key={message.id}
+                            type="button"
+                            className="flex w-full items-start gap-3 rounded-xl bg-white px-3 py-2 text-left hover:bg-[#f4f5f8]"
+                            onClick={() => {
+                              if (message.roomId) setSelectedRoomId(message.roomId);
+                            }}
+                          >
+                            <div className="min-w-0 flex-1">
+                              <p className="text-xs text-[#667085]">
+                                {message.roomName} · {message.groupName} · {formatDateTime(message.createdAt)}
+                              </p>
+                              <p className="text-sm">
+                                <span className="font-medium">{message.senderName}: </span>
+                                {message.preview}
+                              </p>
+                            </div>
+                          </button>
+                        ))}
+                      </div>
+                    ) : (
+                      <p className="py-2 text-sm text-[#667085]">Сообщения не найдены</p>
+                    )}
+                  </div>
+                ) : null}
+
+                <div className="grid min-h-0 flex-1 gap-4 lg:grid-cols-[280px_minmax(0,1fr)]">
+                  <div className="flex min-h-0 flex-col gap-3">
+                    <div className="relative">
+                      <Search className="pointer-events-none absolute left-3 top-1/2 h-4 w-4 -translate-y-1/2 text-[#667085]" />
+                      <Input
+                        value={chatSearch}
+                        onChange={(event) => setChatSearch(event.target.value)}
+                        placeholder="Поиск чатов..."
+                        className="pl-10"
+                      />
+                    </div>
+                    <p className="text-xs text-[#667085]">Чатов: {roomsTotal}. E2E и боты скрыты.</p>
+                    <div className="min-h-0 flex-1 overflow-y-auto rounded-2xl border border-[#eceef4]">
+                      {loadingRooms ? (
+                        <div className="flex items-center justify-center gap-2 py-10 text-[#667085]">
+                          <Loader2 className="h-4 w-4 animate-spin" />
+                        </div>
+                      ) : rooms.length ? (
+                        <div className="divide-y divide-[#eceef4]">
+                          {rooms.map((room) => (
+                            <button
+                              key={room.id}
+                              type="button"
+                              onClick={() => setSelectedRoomId(room.id)}
+                              className={cn(
+                                'w-full px-3 py-3 text-left transition hover:bg-[#f8f9fb]',
+                                selectedRoomId === room.id && 'bg-[#eef4ff]'
+                              )}
+                            >
+                              <div className="flex items-center justify-between gap-2">
+                                <span className="truncate font-medium">{room.name}</span>
+                                <span className="shrink-0 rounded-full bg-[#f4f5f8] px-2 py-0.5 text-[10px] font-semibold text-[#667085]">
+                                  {roomTypeLabels[room.type] ?? room.type}
+                                </span>
+                              </div>
+                              <p className="mt-1 truncate text-xs text-[#667085]">{room.groupName}</p>
+                              {room.lastMessage ? (
+                                <p className="mt-1 truncate text-xs text-[#98a2b3]">{room.lastMessage.preview}</p>
+                              ) : null}
+                            </button>
+                          ))}
+                        </div>
+                      ) : (
+                        <p className="px-3 py-10 text-center text-sm text-[#667085]">Чаты не найдены</p>
+                      )}
+                    </div>
+                  </div>
+
+                  <div className="flex min-h-0 flex-col gap-3">
+                    <div className="rounded-2xl border border-[#eceef4] bg-[#fafbff] px-4 py-3">
+                      <p className="font-medium">{selectedRoom?.name ?? 'Выберите чат'}</p>
+                      <p className="text-xs text-[#667085]">
+                        {roomContext
+                          ? `${roomContext.groupName} · ${roomTypeLabels[roomContext.type] ?? roomContext.type}`
+                          : selectedRoom
+                            ? `${selectedRoom.groupName} · ${selectedRoom.memberCount} участников`
+                            : 'Обычные чаты доступны для модерации'}
+                      </p>
+                    </div>
+                    <div className="relative">
+                      <Search className="pointer-events-none absolute left-3 top-1/2 h-4 w-4 -translate-y-1/2 text-[#667085]" />
+                      <Input
+                        value={messageSearch}
+                        onChange={(event) => setMessageSearch(event.target.value)}
+                        placeholder="Поиск в выбранном чате..."
+                        className="pl-10"
+                        disabled={!selectedRoomId}
+                      />
+                    </div>
+                    <div className="min-h-0 flex-1 overflow-y-auto rounded-2xl border border-[#eceef4] bg-white">
+                      {!selectedRoomId ? (
+                        <p className="py-16 text-center text-sm text-[#667085]">Выберите чат слева</p>
+                      ) : loadingMessages ? (
+                        <div className="flex items-center justify-center gap-2 py-16 text-[#667085]">
+                          <Loader2 className="h-5 w-5 animate-spin" />
+                          Загрузка сообщений...
+                        </div>
+                      ) : roomMessages.length ? (
+                        <div className="space-y-2 p-3">
+                          {roomMessages.map((message) => (
+                            <div
+                              key={message.id}
+                              className={cn(
+                                'rounded-2xl border px-3 py-2',
+                                message.isDeleted ? 'border-red-100 bg-red-50' : 'border-[#eceef4] bg-[#fafbff]'
+                              )}
+                            >
+                              <div className="flex items-start justify-between gap-3">
+                                <div className="min-w-0">
+                                  <div className="flex flex-wrap items-center gap-2">
+                                    <span className="text-sm font-medium">{message.senderName}</span>
+                                    <span className="text-xs text-[#667085]">{formatDateTime(message.createdAt)}</span>
+                                    {message.isDeleted ? (
+                                      <span className="text-xs font-medium text-red-600">Удалено</span>
+                                    ) : null}
+                                  </div>
+                                  <p className="mt-1 whitespace-pre-wrap break-words text-sm text-[#344054]">
+                                    {message.isEncrypted ? '[E2E недоступно для модерации]' : message.preview}
+                                  </p>
+                                </div>
+                                {!message.isDeleted && !message.isEncrypted ? (
+                                  <Button
+                                    type="button"
+                                    variant="ghost"
+                                    size="icon"
+                                    className="shrink-0 text-red-600 hover:bg-red-50 hover:text-red-700"
+                                    disabled={deletingMessageId === message.id}
+                                    aria-label="Удалить сообщение"
+                                    onClick={() => void handleDeleteMessage(message.id)}
+                                  >
+                                    {deletingMessageId === message.id ? (
+                                      <Loader2 className="h-4 w-4 animate-spin" />
+                                    ) : (
+                                      <Trash2 className="h-4 w-4" />
+                                    )}
+                                  </Button>
+                                ) : null}
+                              </div>
+                            </div>
+                          ))}
+                        </div>
+                      ) : (
+                        <p className="py-16 text-center text-sm text-[#667085]">Сообщения не найдены</p>
+                      )}
+                    </div>
+                  </div>
+                </div>
+              </>
+            )}
+          </TabsContent>
+        </Tabs>
+      </DialogContent>
+    </Dialog>
+  );
+}
diff --git a/apps/frontend/lib/api.ts b/apps/frontend/lib/api.ts
index f048c6a..5b6749f 100644
--- a/apps/frontend/lib/api.ts
+++ b/apps/frontend/lib/api.ts
@@ -107,6 +107,7 @@ export interface PublicUser {
   verificationIcon?: string | null;
   canVerifyUsers?: boolean;
   canManageBots?: boolean;
+  canModerateChats?: boolean;
 }
 
 export interface AdminUser {
@@ -658,6 +659,50 @@ export interface SignInEvent {
   createdAt: string;
 }
 
+export interface AdminUserActivityItem {
+  id: string;
+  action: string;
+  title: string;
+  detail?: string;
+  entityType?: string;
+  entityId?: string;
+  createdAt: string;
+}
+
+export interface AdminChatRoomSummary {
+  id: string;
+  type: string;
+  name: string;
+  groupId: string;
+  groupName: string;
+  memberCount: number;
+  messageCount: number;
+  members: Array<{ id: string; displayName: string }>;
+  lastMessage?: {
+    id: string;
+    senderName: string;
+    preview: string;
+    createdAt: string;
+  };
+  joinedAt: string;
+}
+
+export interface AdminChatMessage {
+  id: string;
+  senderId: string;
+  senderName: string;
+  type: string;
+  content?: string | null;
+  preview: string;
+  isEncrypted: boolean;
+  isDeleted: boolean;
+  createdAt: string;
+  editedAt?: string;
+  roomId?: string;
+  roomName?: string;
+  groupName?: string;
+}
+
 export interface ActiveSession {
   id: string;
   userId: string;
diff --git a/apps/sso-core/prisma/schema.prisma b/apps/sso-core/prisma/schema.prisma
index bddf2c2..729f835 100644
--- a/apps/sso-core/prisma/schema.prisma
+++ b/apps/sso-core/prisma/schema.prisma
@@ -64,6 +64,7 @@ model User {
   sessions        Session[]
   devices         Device[]
   signInEvents    SignInEvent[]
+  activityLogs    UserActivityLog[]
   authCodes       AuthCode[]
   linkedAccounts  LinkedAccount[]
   userRoles       UserRole[]
@@ -171,6 +172,24 @@ model SignInEvent {
   @@index([userId, createdAt])
 }
 
+model UserActivityLog {
+  id         String   @id @default(uuid())
+  userId     String
+  action     String
+  title      String
+  detail     String?
+  entityType String?
+  entityId   String?
+  ipAddress  String?
+  userAgent  String?
+  actorId    String?
+  createdAt  DateTime @default(now())
+  user       User     @relation(fields: [userId], references: [id], onDelete: Cascade)
+
+  @@index([userId, createdAt])
+  @@index([userId, action])
+}
+
 model LinkedAccount {
   id           String   @id @default(uuid())
   userId       String
diff --git a/apps/sso-core/src/app.module.ts b/apps/sso-core/src/app.module.ts
index 2dbd635..702d25b 100644
--- a/apps/sso-core/src/app.module.ts
+++ b/apps/sso-core/src/app.module.ts
@@ -4,6 +4,8 @@ import { JwtModule } from '@nestjs/jwt';
 import { AccessService } from './domain/access.service';
 import { AdminSeedService } from './domain/admin-seed.service';
 import { AdminService } from './domain/admin.service';
+import { AdminUserInsightsService } from './domain/admin-user-insights.service';
+import { ActivityLogService } from './domain/activity-log.service';
 import { AuthGrpcController } from './domain/auth-grpc.controller';
 import { AuthService } from './domain/auth.service';
 import { PinService } from './domain/pin.service';
@@ -70,6 +72,8 @@ import { BotFatherAssistantService } from './domain/bot/bot-father-assistant.ser
     AccessService,
     AdminSeedService,
     AdminService,
+    AdminUserInsightsService,
+    ActivityLogService,
     RbacService,
     OAuthSslSansService,
     SecurityService,
diff --git a/apps/sso-core/src/domain/access.service.ts b/apps/sso-core/src/domain/access.service.ts
index e78bb82..74596f1 100644
--- a/apps/sso-core/src/domain/access.service.ts
+++ b/apps/sso-core/src/domain/access.service.ts
@@ -16,6 +16,7 @@ export interface UserAccessContext {
   canViewUserDocuments: boolean;
   canVerifyUsers: boolean;
   canManageBots: boolean;
+  canModerateChats: boolean;
 }
 
 function hasAnyPermission(permissions: string[], ...slugs: string[]) {
@@ -44,7 +45,8 @@ export class AccessService {
           'rbac.manage',
           'documents.view_others',
           'users.verify',
-          'bots.manage.all'
+          'bots.manage.all',
+          'chat.moderate'
         ],
         canAccessAdmin: true,
         canManageRoles: true,
@@ -57,7 +59,8 @@ export class AccessService {
         canManageSettings: true,
         canViewUserDocuments: true,
         canVerifyUsers: true,
-        canManageBots: true
+        canManageBots: true,
+        canModerateChats: true
       };
     }
 
@@ -106,7 +109,8 @@ export class AccessService {
       canManageSettings: permissions.includes('settings.manage'),
       canViewUserDocuments: permissions.includes('documents.view_others'),
       canVerifyUsers: permissions.includes('users.verify'),
-      canManageBots: permissions.includes('bots.manage.all')
+      canManageBots: permissions.includes('bots.manage.all'),
+      canModerateChats: permissions.includes('chat.moderate')
     };
   }
 
diff --git a/apps/sso-core/src/domain/activity-log.service.ts b/apps/sso-core/src/domain/activity-log.service.ts
new file mode 100644
index 0000000..890952c
--- /dev/null
+++ b/apps/sso-core/src/domain/activity-log.service.ts
@@ -0,0 +1,39 @@
+import { Injectable } from '@nestjs/common';
+import { PrismaService } from '../infra/prisma.service';
+
+export interface RecordActivityInput {
+  userId: string;
+  action: string;
+  title: string;
+  detail?: string;
+  entityType?: string;
+  entityId?: string;
+  ipAddress?: string;
+  userAgent?: string;
+  actorId?: string;
+}
+
+@Injectable()
+export class ActivityLogService {
+  constructor(private readonly prisma: PrismaService) {}
+
+  async record(input: RecordActivityInput) {
+    return this.prisma.userActivityLog.create({
+      data: {
+        userId: input.userId,
+        action: input.action,
+        title: input.title,
+        detail: input.detail,
+        entityType: input.entityType,
+        entityId: input.entityId,
+        ipAddress: input.ipAddress,
+        userAgent: input.userAgent,
+        actorId: input.actorId
+      }
+    });
+  }
+
+  recordSafe(input: RecordActivityInput) {
+    void this.record(input).catch(() => undefined);
+  }
+}
diff --git a/apps/sso-core/src/domain/admin-seed.service.ts b/apps/sso-core/src/domain/admin-seed.service.ts
index 8b9c80d..f820b91 100644
--- a/apps/sso-core/src/domain/admin-seed.service.ts
+++ b/apps/sso-core/src/domain/admin-seed.service.ts
@@ -18,6 +18,7 @@ const PERMISSIONS = [
   { slug: 'settings.manage', name: 'Управление настройками', description: 'Изменение глобальных SystemSetting' },
   { slug: 'rbac.manage', name: 'Управление ролями и правами', description: 'Назначение ролей, прав пользователям и редактирование ролей' },
   { slug: 'documents.view_others', name: 'Просмотр документов пользователей', description: 'Просмотр документов и фото других пользователей' },
+  { slug: 'chat.moderate', name: 'Модерация чатов', description: 'Просмотр обычных переписок пользователей и удаление сообщений' },
   { slug: 'bots.manage.all', name: 'Управление всеми ботами', description: 'Просмотр, блокировка и администрирование всех Telegram-ботов' }
 ] as const;
 
@@ -42,7 +43,7 @@ const ROLES = [
     slug: 'admin',
     name: 'Администратор',
     description: 'Полный доступ к админ-панели',
-    permissions: ['admin.access', 'oauth.manage.all', 'oauth.view.all', 'users.manage.all', 'users.view.all', 'users.verify', 'settings.manage', 'rbac.manage', 'bots.manage.all'],
+    permissions: ['admin.access', 'oauth.manage.all', 'oauth.view.all', 'users.manage.all', 'users.view.all', 'users.verify', 'settings.manage', 'rbac.manage', 'bots.manage.all', 'chat.moderate'],
     isSystem: false,
     isDefault: false
   },
@@ -50,7 +51,7 @@ const ROLES = [
     slug: 'moderator',
     name: 'Модератор',
     description: 'Просмотр пользователей и базовый доступ к админке',
-    permissions: ['admin.access', 'users.view', 'users.view.all'],
+    permissions: ['admin.access', 'users.view', 'users.view.all', 'chat.moderate'],
     isSystem: false,
     isDefault: false
   },
diff --git a/apps/sso-core/src/domain/admin-user-insights.service.ts b/apps/sso-core/src/domain/admin-user-insights.service.ts
new file mode 100644
index 0000000..5999bd4
--- /dev/null
+++ b/apps/sso-core/src/domain/admin-user-insights.service.ts
@@ -0,0 +1,474 @@
+import { BadRequestException, ForbiddenException, Injectable, NotFoundException } from '@nestjs/common';
+import { PrismaService } from '../infra/prisma.service';
+
+const MODERATABLE_ROOM_FILTER = {
+  isE2E: false,
+  type: { notIn: ['E2E', 'BOT'] as string[] }
+};
+
+const DOCUMENT_TYPE_LABELS: Record<string, string> = {
+  PASSPORT: 'Паспорт',
+  DRIVER_LICENSE: 'Водительское удостоверение',
+  SNILS: 'СНИЛС',
+  INN: 'ИНН',
+  BIRTH_CERTIFICATE: 'Свидетельство о рождении',
+  OTHER: 'Документ'
+};
+
+const ROOM_TYPE_LABELS: Record<string, string> = {
+  GENERAL: 'Общий чат семьи',
+  DIRECT: 'Личный чат',
+  GROUP: 'Групповой чат'
+};
+
+@Injectable()
+export class AdminUserInsightsService {
+  constructor(private readonly prisma: PrismaService) {}
+
+  async ensureHumanUser(userId: string) {
+    const user = await this.prisma.user.findFirst({
+      where: { id: userId, deletedAt: null, isSystemAccount: false, linkedBotId: null }
+    });
+    if (!user) {
+      throw new NotFoundException('Пользователь не найден');
+    }
+    return user;
+  }
+
+  async getSignInHistory(userId: string, search?: string, limit = 50, offset = 0) {
+    await this.ensureHumanUser(userId);
+    const take = Math.min(Math.max(limit, 1), 100);
+    const skip = Math.max(offset, 0);
+    const searchTerm = search?.trim();
+
+    const where = {
+      userId,
+      ...(searchTerm
+        ? {
+            OR: [
+              { ipAddress: { contains: searchTerm, mode: 'insensitive' as const } },
+              { userAgent: { contains: searchTerm, mode: 'insensitive' as const } },
+              { reason: { contains: searchTerm, mode: 'insensitive' as const } },
+              { device: { name: { contains: searchTerm, mode: 'insensitive' as const } } }
+            ]
+          }
+        : {})
+    };
+
+    const [events, total] = await Promise.all([
+      this.prisma.signInEvent.findMany({
+        where,
+        orderBy: { createdAt: 'desc' },
+        take,
+        skip,
+        include: { device: true }
+      }),
+      this.prisma.signInEvent.count({ where })
+    ]);
+
+    return {
+      total,
+      events: events.map((event) => ({
+        id: event.id,
+        success: event.success,
+        reason: event.reason ?? undefined,
+        ipAddress: event.ipAddress ?? undefined,
+        userAgent: event.userAgent ?? undefined,
+        deviceName: event.device?.name ?? undefined,
+        createdAt: event.createdAt.toISOString()
+      }))
+    };
+  }
+
+  async getActivityTimeline(userId: string, search?: string, limit = 50, offset = 0) {
+    await this.ensureHumanUser(userId);
+    const searchTerm = search?.trim().toLowerCase();
+    const take = Math.min(Math.max(limit, 1), 100);
+
+    const [logs, documents, messages, rooms, families, consents] = await Promise.all([
+      this.prisma.userActivityLog.findMany({
+        where: { userId },
+        orderBy: { createdAt: 'desc' },
+        take: 200
+      }),
+      this.prisma.userDocument.findMany({
+        where: { userId },
+        orderBy: { createdAt: 'desc' },
+        take: 100
+      }),
+      this.prisma.chatMessage.findMany({
+        where: {
+          senderId: userId,
+          deletedAt: null,
+          room: MODERATABLE_ROOM_FILTER
+        },
+        include: { room: { include: { group: true } } },
+        orderBy: { createdAt: 'desc' },
+        take: 100
+      }),
+      this.prisma.chatRoom.findMany({
+        where: { createdById: userId, ...MODERATABLE_ROOM_FILTER },
+        include: { group: true },
+        orderBy: { createdAt: 'desc' },
+        take: 50
+      }),
+      this.prisma.familyGroup.findMany({
+        where: { ownerId: userId },
+        orderBy: { createdAt: 'desc' },
+        take: 50
+      }),
+      this.prisma.oAuthConsent.findMany({
+        where: { userId },
+        include: { client: true },
+        orderBy: { createdAt: 'desc' },
+        take: 50
+      })
+    ]);
+
+    type TimelineItem = {
+      id: string;
+      action: string;
+      title: string;
+      detail?: string;
+      entityType?: string;
+      entityId?: string;
+      createdAt: string;
+    };
+
+    const items: TimelineItem[] = [
+      ...logs.map((item) => ({
+        id: item.id,
+        action: item.action,
+        title: item.title,
+        detail: item.detail ?? undefined,
+        entityType: item.entityType ?? undefined,
+        entityId: item.entityId ?? undefined,
+        createdAt: item.createdAt.toISOString()
+      })),
+      ...documents.map((doc) => ({
+        id: `doc-${doc.id}`,
+        action: 'DOCUMENT_CREATED',
+        title: 'Добавлен документ',
+        detail: `${DOCUMENT_TYPE_LABELS[doc.type] ?? doc.type} · ${doc.number}`,
+        entityType: 'document',
+        entityId: doc.id,
+        createdAt: doc.createdAt.toISOString()
+      })),
+      ...messages.map((message) => ({
+        id: `msg-${message.id}`,
+        action: 'CHAT_MESSAGE_SENT',
+        title: 'Сообщение в чате',
+        detail: this.formatMessagePreview(message.type, message.content, message.isEncrypted),
+        entityType: 'chat_message',
+        entityId: message.id,
+        createdAt: message.createdAt.toISOString()
+      })),
+      ...rooms.map((room) => ({
+        id: `room-${room.id}`,
+        action: 'CHAT_ROOM_CREATED',
+        title: 'Создан чат',
+        detail: `${ROOM_TYPE_LABELS[room.type] ?? room.type}: ${room.name} (${room.group.name})`,
+        entityType: 'chat_room',
+        entityId: room.id,
+        createdAt: room.createdAt.toISOString()
+      })),
+      ...families.map((group) => ({
+        id: `family-${group.id}`,
+        action: 'FAMILY_CREATED',
+        title: 'Создана семья',
+        detail: group.name,
+        entityType: 'family',
+        entityId: group.id,
+        createdAt: group.createdAt.toISOString()
+      })),
+      ...consents.map((consent) => ({
+        id: `oauth-${consent.id}`,
+        action: 'OAUTH_CONSENT',
+        title: 'Разрешён доступ приложению',
+        detail: consent.client.name,
+        entityType: 'oauth_consent',
+        entityId: consent.id,
+        createdAt: consent.createdAt.toISOString()
+      }))
+    ];
+
+    const deduped = [...new Map(items.map((item) => [item.id, item])).values()]
+      .sort((a, b) => new Date(b.createdAt).getTime() - new Date(a.createdAt).getTime())
+      .filter((item) => {
+        if (!searchTerm) return true;
+        const haystack = `${item.title} ${item.detail ?? ''} ${item.action}`.toLowerCase();
+        return haystack.includes(searchTerm);
+      });
+
+    const skip = Math.max(offset, 0);
+    return {
+      total: deduped.length,
+      items: deduped.slice(skip, skip + take)
+    };
+  }
+
+  async listUserChatRooms(userId: string, search?: string, limit = 50, offset = 0) {
+    await this.ensureHumanUser(userId);
+    const take = Math.min(Math.max(limit, 1), 100);
+    const skip = Math.max(offset, 0);
+    const searchTerm = search?.trim();
+
+    const memberships = await this.prisma.chatRoomMember.findMany({
+      where: {
+        userId,
+        room: {
+          ...MODERATABLE_ROOM_FILTER,
+          ...(searchTerm
+            ? {
+                OR: [
+                  { name: { contains: searchTerm, mode: 'insensitive' } },
+                  { group: { name: { contains: searchTerm, mode: 'insensitive' } } }
+                ]
+              }
+            : {})
+        }
+      },
+      include: {
+        room: {
+          include: {
+            group: true,
+            members: {
+              include: {
+                user: { select: { id: true, displayName: true } }
+              }
+            },
+            messages: {
+              where: { deletedAt: null },
+              orderBy: { createdAt: 'desc' },
+              take: 1,
+              include: { sender: { select: { displayName: true } } }
+            },
+            _count: { select: { messages: true } }
+          }
+        }
+      },
+      orderBy: { joinedAt: 'desc' }
+    });
+
+    const rooms = memberships.map((membership) => {
+      const room = membership.room;
+      const lastMessage = room.messages[0];
+      return {
+        id: room.id,
+        type: room.type,
+        name: room.name,
+        groupId: room.groupId,
+        groupName: room.group.name,
+        memberCount: room.members.length,
+        messageCount: room._count.messages,
+        members: room.members.map((member) => ({
+          id: member.user.id,
+          displayName: member.user.displayName
+        })),
+        lastMessage: lastMessage
+          ? {
+              id: lastMessage.id,
+              senderName: lastMessage.sender.displayName,
+              preview: this.formatMessagePreview(lastMessage.type, lastMessage.content, lastMessage.isEncrypted),
+              createdAt: lastMessage.createdAt.toISOString()
+            }
+          : undefined,
+        joinedAt: membership.joinedAt.toISOString()
+      };
+    });
+
+    return {
+      total: rooms.length,
+      rooms: rooms.slice(skip, skip + take)
+    };
+  }
+
+  async listRoomMessages(userId: string, roomId: string, search?: string, limit = 50, beforeMessageId?: string) {
+    await this.ensureHumanUser(userId);
+    const room = await this.getModeratableRoom(roomId);
+    const member = await this.prisma.chatRoomMember.findUnique({
+      where: { roomId_userId: { roomId, userId } }
+    });
+    if (!member) {
+      throw new ForbiddenException('Пользователь не состоит в этом чате');
+    }
+
+    const take = Math.min(Math.max(limit, 1), 100);
+    const searchTerm = search?.trim();
+
+    let cursorDate: Date | undefined;
+    if (beforeMessageId) {
+      const cursor = await this.prisma.chatMessage.findFirst({ where: { id: beforeMessageId, roomId } });
+      if (cursor) cursorDate = cursor.createdAt;
+    }
+
+    const messages = await this.prisma.chatMessage.findMany({
+      where: {
+        roomId,
+        ...(cursorDate ? { createdAt: { lt: cursorDate } } : {}),
+        ...(searchTerm
+          ? {
+              OR: [
+                { content: { contains: searchTerm, mode: 'insensitive' } },
+                { sender: { displayName: { contains: searchTerm, mode: 'insensitive' } } }
+              ]
+            }
+          : {})
+      },
+      include: { sender: { select: { id: true, displayName: true } } },
+      orderBy: { createdAt: 'desc' },
+      take
+    });
+
+    return {
+      room: {
+        id: room.id,
+        name: room.name,
+        type: room.type,
+        groupName: room.group.name
+      },
+      messages: messages.reverse().map((message) => this.toAdminMessage(message))
+    };
+  }
+
+  async searchUserChatMessages(userId: string, search?: string, limit = 50, offset = 0) {
+    await this.ensureHumanUser(userId);
+    const searchTerm = search?.trim();
+    if (!searchTerm) {
+      throw new BadRequestException('Укажите текст для поиска по сообщениям');
+    }
+
+    const take = Math.min(Math.max(limit, 1), 100);
+    const skip = Math.max(offset, 0);
+
+    const where = {
+      room: {
+        members: { some: { userId } },
+        ...MODERATABLE_ROOM_FILTER
+      },
+      deletedAt: null,
+      OR: [
+        { content: { contains: searchTerm, mode: 'insensitive' as const } },
+        { sender: { displayName: { contains: searchTerm, mode: 'insensitive' as const } } }
+      ]
+    };
+
+    const [messages, total] = await Promise.all([
+      this.prisma.chatMessage.findMany({
+        where,
+        include: {
+          sender: { select: { id: true, displayName: true } },
+          room: { include: { group: true } }
+        },
+        orderBy: { createdAt: 'desc' },
+        take,
+        skip
+      }),
+      this.prisma.chatMessage.count({ where })
+    ]);
+
+    return {
+      total,
+      messages: messages.map((message) => ({
+        ...this.toAdminMessage(message),
+        roomId: message.roomId,
+        roomName: message.room.name,
+        groupName: message.room.group.name
+      }))
+    };
+  }
+
+  async adminDeleteMessage(actorId: string, messageId: string) {
+    const message = await this.prisma.chatMessage.findUnique({
+      where: { id: messageId },
+      include: { room: { include: { group: true } }, sender: true }
+    });
+    if (!message) {
+      throw new NotFoundException('Сообщение не найдено');
+    }
+    if (message.room.isE2E || message.room.type === 'E2E') {
+      throw new ForbiddenException('E2E-сообщения недоступны для модерации');
+    }
+    if (message.room.type === 'BOT') {
+      throw new ForbiddenException('Сообщения бота модерируются отдельно');
+    }
+
+    await this.prisma.chatMessage.update({
+      where: { id: messageId },
+      data: {
+        deletedAt: new Date(),
+        content: null,
+        storageKey: null,
+        mimeType: null,
+        metadata: { moderated: true, moderatedBy: actorId }
+      }
+    });
+
+    await this.prisma.userActivityLog.create({
+      data: {
+        userId: message.senderId,
+        action: 'ADMIN_MESSAGE_DELETED',
+        title: 'Сообщение удалено модератором',
+        detail: `Чат «${message.room.name}» (${message.room.group.name})`,
+        entityType: 'chat_message',
+        entityId: message.id,
+        actorId
+      }
+    });
+
+    return { success: true };
+  }
+
+  private async getModeratableRoom(roomId: string) {
+    const room = await this.prisma.chatRoom.findUnique({
+      where: { id: roomId },
+      include: { group: true }
+    });
+    if (!room) {
+      throw new NotFoundException('Чат не найден');
+    }
+    if (room.isE2E || room.type === 'E2E' || room.type === 'BOT') {
+      throw new ForbiddenException('Этот чат недоступен для модерации');
+    }
+    return room;
+  }
+
+  private formatMessagePreview(type: string, content: string | null, isEncrypted: boolean) {
+    if (isEncrypted) {
+      return '[Зашифрованное сообщение]';
+    }
+    if (type === 'IMAGE') return '[Изображение]';
+    if (type === 'AUDIO' || type === 'VOICE') return '[Аудио]';
+    if (type === 'FILE') return '[Файл]';
+    if (type === 'POLL') return '[Опрос]';
+    if (type === 'SYSTEM') return '[Системное сообщение]';
+    const text = content?.trim();
+    if (!text) return '[Пустое сообщение]';
+    return text.length > 160 ? `${text.slice(0, 157)}…` : text;
+  }
+
+  private toAdminMessage(message: {
+    id: string;
+    senderId: string;
+    type: string;
+    content: string | null;
+    isEncrypted: boolean;
+    deletedAt: Date | null;
+    createdAt: Date;
+    editedAt: Date | null;
+    sender: { id: string; displayName: string };
+  }) {
+    return {
+      id: message.id,
+      senderId: message.senderId,
+      senderName: message.sender.displayName,
+      type: message.type,
+      content: message.isEncrypted ? null : message.content,
+      preview: this.formatMessagePreview(message.type, message.content, message.isEncrypted),
+      isEncrypted: message.isEncrypted,
+      isDeleted: Boolean(message.deletedAt),
+      createdAt: message.createdAt.toISOString(),
+      editedAt: message.editedAt?.toISOString()
+    };
+  }
+}
diff --git a/apps/sso-core/src/domain/auth-grpc.controller.ts b/apps/sso-core/src/domain/auth-grpc.controller.ts
index f2fe9e0..a17d4cf 100644
--- a/apps/sso-core/src/domain/auth-grpc.controller.ts
+++ b/apps/sso-core/src/domain/auth-grpc.controller.ts
@@ -2,6 +2,7 @@ import { BadRequestException, Controller, UseFilters } from '@nestjs/common';
 import { GrpcMethod } from '@nestjs/microservices';
 import { GrpcExceptionFilter } from '../infra/grpc-exception.filter';
 import { AdminService } from './admin.service';
+import { AdminUserInsightsService } from './admin-user-insights.service';
 import { AuthService } from './auth.service';
 import { LoginCommand, RegisterCommand, VerifyPinCommand } from './dto';
 import { PinService } from './pin.service';
@@ -36,6 +37,7 @@ export class AuthGrpcController {
     private readonly pin: PinService,
     private readonly session: SessionService,
     private readonly admin: AdminService,
+    private readonly adminInsights: AdminUserInsightsService,
     private readonly rbac: RbacService,
     private readonly security: SecurityService,
     private readonly settings: SettingsService,
@@ -184,6 +186,42 @@ export class AuthGrpcController {
     return this.admin.listVerificationIcons();
   }
 
+  @GrpcMethod('AdminService', 'GetUserSignInHistory')
+  getUserSignInHistory(command: { userId: string; search?: string; limit?: number; offset?: number }) {
+    return this.adminInsights.getSignInHistory(command.userId, command.search, command.limit, command.offset);
+  }
+
+  @GrpcMethod('AdminService', 'GetUserActivity')
+  getUserActivity(command: { userId: string; search?: string; limit?: number; offset?: number }) {
+    return this.adminInsights.getActivityTimeline(command.userId, command.search, command.limit, command.offset);
+  }
+
+  @GrpcMethod('AdminService', 'ListUserChatRooms')
+  listUserChatRooms(command: { userId: string; search?: string; limit?: number; offset?: number }) {
+    return this.adminInsights.listUserChatRooms(command.userId, command.search, command.limit, command.offset);
+  }
+
+  @GrpcMethod('AdminService', 'ListUserChatMessages')
+  listUserChatMessages(command: { userId: string; roomId: string; search?: string; limit?: number; beforeMessageId?: string }) {
+    return this.adminInsights.listRoomMessages(
+      command.userId,
+      command.roomId,
+      command.search,
+      command.limit,
+      command.beforeMessageId
+    );
+  }
+
+  @GrpcMethod('AdminService', 'SearchUserChatMessages')
+  searchUserChatMessages(command: { userId: string; search: string; limit?: number; offset?: number }) {
+    return this.adminInsights.searchUserChatMessages(command.userId, command.search, command.limit, command.offset);
+  }
+
+  @GrpcMethod('AdminService', 'AdminDeleteChatMessage')
+  adminDeleteChatMessage(command: { actorUserId: string; messageId: string }) {
+    return this.adminInsights.adminDeleteMessage(command.actorUserId, command.messageId);
+  }
+
   @GrpcMethod('RbacService', 'ListRoles')
   async listRoles() {
     const roles = await this.rbac.listRoles();
diff --git a/apps/sso-core/src/domain/auth.service.ts b/apps/sso-core/src/domain/auth.service.ts
index af2d365..5e484d7 100644
--- a/apps/sso-core/src/domain/auth.service.ts
+++ b/apps/sso-core/src/domain/auth.service.ts
@@ -932,7 +932,8 @@ export class AuthService implements OnModuleInit {
       canViewUsers: access.canViewUsers,
       canViewUserDocuments: access.canViewUserDocuments,
       canVerifyUsers: access.canVerifyUsers,
-      canManageBots: access.canManageBots
+      canManageBots: access.canManageBots,
+      canModerateChats: access.canModerateChats
     };
   }
 
diff --git a/apps/sso-core/src/domain/dto.ts b/apps/sso-core/src/domain/dto.ts
index be57463..bf7d249 100644
--- a/apps/sso-core/src/domain/dto.ts
+++ b/apps/sso-core/src/domain/dto.ts
@@ -56,6 +56,7 @@ export interface PublicUser {
   verificationIcon?: string;
   canVerifyUsers?: boolean;
   canManageBots?: boolean;
+  canModerateChats?: boolean;
 }
 
 export interface VerifyPinCommand {
diff --git a/shared/proto/admin.proto b/shared/proto/admin.proto
index 6c2a737..37678b4 100644
--- a/shared/proto/admin.proto
+++ b/shared/proto/admin.proto
@@ -11,6 +11,12 @@ service AdminService {
   rpc SetSuperAdmin (SetSuperAdminRequest) returns (AdminUser);
   rpc SetUserVerification (SetUserVerificationRequest) returns (AdminUser);
   rpc ListVerificationIcons (Empty) returns (ListVerificationIconsResponse);
+  rpc GetUserSignInHistory (GetUserInsightsRequest) returns (UserSignInHistoryResponse);
+  rpc GetUserActivity (GetUserInsightsRequest) returns (UserActivityResponse);
+  rpc ListUserChatRooms (GetUserInsightsRequest) returns (UserChatRoomsResponse);
+  rpc ListUserChatMessages (ListUserChatMessagesRequest) returns (UserChatMessagesResponse);
+  rpc SearchUserChatMessages (SearchUserChatMessagesRequest) returns (UserChatMessageSearchResponse);
+  rpc AdminDeleteChatMessage (AdminDeleteChatMessageRequest) returns (Empty);
 }
 
 message Empty {}
@@ -83,3 +89,123 @@ message AdminUser {
 message ListUsersResponse {
   repeated AdminUser users = 1;
 }
+
+message GetUserInsightsRequest {
+  string userId = 1;
+  optional string search = 2;
+  optional int32 limit = 3;
+  optional int32 offset = 4;
+}
+
+message AdminSignInEvent {
+  string id = 1;
+  bool success = 2;
+  optional string reason = 3;
+  optional string ipAddress = 4;
+  optional string userAgent = 5;
+  optional string deviceName = 6;
+  string createdAt = 7;
+}
+
+message UserSignInHistoryResponse {
+  int32 total = 1;
+  repeated AdminSignInEvent events = 2;
+}
+
+message UserActivityItem {
+  string id = 1;
+  string action = 2;
+  string title = 3;
+  optional string detail = 4;
+  optional string entityType = 5;
+  optional string entityId = 6;
+  string createdAt = 7;
+}
+
+message UserActivityResponse {
+  int32 total = 1;
+  repeated UserActivityItem items = 2;
+}
+
+message AdminChatRoomMember {
+  string id = 1;
+  string displayName = 2;
+}
+
+message AdminChatLastMessage {
+  string id = 1;
+  string senderName = 2;
+  string preview = 3;
+  string createdAt = 4;
+}
+
+message AdminChatRoomSummary {
+  string id = 1;
+  string type = 2;
+  string name = 3;
+  string groupId = 4;
+  string groupName = 5;
+  int32 memberCount = 6;
+  int32 messageCount = 7;
+  repeated AdminChatRoomMember members = 8;
+  optional AdminChatLastMessage lastMessage = 9;
+  string joinedAt = 10;
+}
+
+message UserChatRoomsResponse {
+  int32 total = 1;
+  repeated AdminChatRoomSummary rooms = 2;
+}
+
+message ListUserChatMessagesRequest {
+  string userId = 1;
+  string roomId = 2;
+  optional string search = 3;
+  optional int32 limit = 4;
+  optional string beforeMessageId = 5;
+}
+
+message SearchUserChatMessagesRequest {
+  string userId = 1;
+  string search = 2;
+  optional int32 limit = 3;
+  optional int32 offset = 4;
+}
+
+message AdminChatMessage {
+  string id = 1;
+  string senderId = 2;
+  string senderName = 3;
+  string type = 4;
+  optional string content = 5;
+  string preview = 6;
+  bool isEncrypted = 7;
+  bool isDeleted = 8;
+  string createdAt = 9;
+  optional string editedAt = 10;
+  optional string roomId = 11;
+  optional string roomName = 12;
+  optional string groupName = 13;
+}
+
+message AdminChatRoomContext {
+  string id = 1;
+  string name = 2;
+  string type = 3;
+  string groupName = 4;
+}
+
+message UserChatMessagesResponse {
+  optional AdminChatRoomContext room = 1;
+  repeated AdminChatMessage messages = 2;
+}
+
+message UserChatMessageSearchResponse {
+  int32 total = 1;
+  repeated AdminChatMessage messages = 2;
+}
+
+message AdminDeleteChatMessageRequest {
+  string actorUserId = 1;
+  string messageId = 2;
+}