diff --git a/app/Controllers/DashboardController.php b/app/Controllers/DashboardController.php
index 74c98fb..6b5e55e 100644
--- a/app/Controllers/DashboardController.php
+++ b/app/Controllers/DashboardController.php
@@ -60,7 +60,7 @@ class DashboardController extends Controller
         $formattedExpiringDomains = \App\Helpers\DomainHelper::formatMultiple($expiringThisMonth);
         
         // Get global stats for dashboard cards
-        $globalStats = \App\Helpers\LayoutHelper::getGlobalStats();
+        $globalStats = \App\Helpers\LayoutHelper::getGlobalStats($userId);
 
         $this->view('dashboard/index', [
             'stats' => $stats,
diff --git a/app/Helpers/LayoutHelper.php b/app/Helpers/LayoutHelper.php
index a674507..ca48333 100644
--- a/app/Helpers/LayoutHelper.php
+++ b/app/Helpers/LayoutHelper.php
@@ -35,34 +35,55 @@ class LayoutHelper
     }
     
     /**
-     * Get global stats for sidebar
+     * Get stats for sidebar (respects user isolation)
      */
-    public static function getGlobalStats(): array
+    public static function getGlobalStats(?int $userId = null): array
     {
         try {
             $pdo = \Core\Database::getConnection();
             
+            // Check isolation mode
+            $settingModel = new Setting();
+            $isolationMode = $settingModel->getValue('user_isolation_mode', 'shared');
+            
+            // Build WHERE clause based on isolation mode
+            $whereClause = '';
+            $params = [];
+            
+            if ($isolationMode === 'isolated' && $userId) {
+                $whereClause = ' WHERE user_id = ?';
+                $params[] = $userId;
+            }
+            
             // Get total domains
-            $totalStmt = $pdo->query("SELECT COUNT(*) as count FROM domains");
+            $totalSql = "SELECT COUNT(*) as count FROM domains" . $whereClause;
+            $totalStmt = $pdo->prepare($totalSql);
+            $totalStmt->execute($params);
             $total = $totalStmt->fetch(\PDO::FETCH_ASSOC)['count'] ?? 0;
             
             // Get active domains
-            $activeStmt = $pdo->query("SELECT COUNT(*) as count FROM domains WHERE is_active = 1");
+            $activeSql = "SELECT COUNT(*) as count FROM domains WHERE is_active = 1" . $whereClause;
+            $activeStmt = $pdo->prepare($activeSql);
+            $activeStmt->execute($params);
             $active = $activeStmt->fetch(\PDO::FETCH_ASSOC)['count'] ?? 0;
             
             // Get expiring soon
-            $settingModel = new Setting();
             $notificationDays = $settingModel->getNotificationDays();
             $threshold = !empty($notificationDays) ? max($notificationDays) : 30;
             
-            $expiringSoonStmt = $pdo->prepare(
-                "SELECT COUNT(*) as count FROM domains 
-                 WHERE is_active = 1 
-                 AND expiration_date IS NOT NULL 
-                 AND expiration_date <= DATE_ADD(NOW(), INTERVAL ? DAY) 
-                 AND expiration_date >= NOW()"
-            );
-            $expiringSoonStmt->execute([$threshold]);
+            $expiringSql = "SELECT COUNT(*) as count FROM domains 
+                           WHERE is_active = 1 
+                           AND expiration_date IS NOT NULL 
+                           AND expiration_date <= DATE_ADD(NOW(), INTERVAL ? DAY) 
+                           AND expiration_date >= NOW()" . $whereClause;
+            
+            $expiringParams = [$threshold];
+            if ($isolationMode === 'isolated' && $userId) {
+                $expiringParams[] = $userId;
+            }
+            
+            $expiringSoonStmt = $pdo->prepare($expiringSql);
+            $expiringSoonStmt->execute($expiringParams);
             $expiringSoon = $expiringSoonStmt->fetch(\PDO::FETCH_ASSOC)['count'] ?? 0;
             
             return [
diff --git a/app/Views/layout/base.php b/app/Views/layout/base.php
index 82f3294..9d1da00 100644
--- a/app/Views/layout/base.php
+++ b/app/Views/layout/base.php
@@ -16,7 +16,8 @@ if (isset($_SESSION['user_id'])) {
 
 // Fetch global stats for sidebar (available on all pages)
 if (!isset($globalStats)) {
-    $globalStats = \App\Helpers\LayoutHelper::getGlobalStats();
+    $userId = \Core\Auth::id();
+    $globalStats = \App\Helpers\LayoutHelper::getGlobalStats($userId);
 }
 
 // Get application settings from database