diff --git a/resources/js/Components/ActivityLog/ActivityDetailDialog.tsx b/resources/js/Components/ActivityLog/ActivityDetailDialog.tsx
index 79be7a5..b524e5d 100644
--- a/resources/js/Components/ActivityLog/ActivityDetailDialog.tsx
+++ b/resources/js/Components/ActivityLog/ActivityDetailDialog.tsx
@@ -45,6 +45,7 @@ interface Props {
 const fieldLabels: Record<string, string> = {
     name: '名稱',
     code: '代碼',
+    username: '登入帳號',
     description: '描述',
     price: '價格',
     cost: '成本',
@@ -146,8 +147,6 @@ export default function ActivityDetailDialog({ open, onOpenChange, activity }: P
             return a.localeCompare(b);
         });
 
-    // Helper to check if a key is a snapshot name field
-
     // Helper to check if a key is a snapshot name field
     const isSnapshotField = (key: string) => {
         return [
@@ -176,6 +175,9 @@ export default function ActivityDetailDialog({ open, onOpenChange, activity }: P
     };
 
     const formatValue = (key: string, value: any) => {
+        // Mask password
+        if (key === 'password') return '******';
+
         if (value === null || value === undefined) return '-';
         if (typeof value === 'boolean') return value ? '是' : '否';
         if (key === 'is_active') return value ? '啟用' : '停用';