diff --git a/public/wallpapers/1.png b/public/wallpapers/1.png
new file mode 100644
index 00000000..f401bc6c
Binary files /dev/null and b/public/wallpapers/1.png differ
diff --git a/src/app.tsx b/src/app.tsx
index 81cf7faa..d3197cb7 100644
--- a/src/app.tsx
+++ b/src/app.tsx
@@ -24,7 +24,7 @@ export default function App() {
 
   const accountLoader = async () => {
     try {
-      const account = await db.checkAccount();
+      const totalAccount = await db.checkAccount();
 
       const stronghold = sessionStorage.getItem('stronghold');
       const privkey = JSON.parse(stronghold).state.privkey || null;
@@ -32,7 +32,7 @@ export default function App() {
       const onboarding = localStorage.getItem('onboarding');
       const step = JSON.parse(onboarding).state.step || null;
 
-      if (!account) {
+      if (totalAccount === 0) {
         return redirect('/auth/welcome');
       } else {
         if (step) {
@@ -251,6 +251,13 @@ export default function App() {
             return { Component: UnlockScreen };
           },
         },
+        {
+          path: 'lock',
+          async lazy() {
+            const { LockScreen } = await import('@app/auth/lock');
+            return { Component: LockScreen };
+          },
+        },
         {
           path: 'migrate',
           async lazy() {
diff --git a/src/app/auth/create/step-2.tsx b/src/app/auth/create/step-2.tsx
index 84e5dfab..56f485bb 100644
--- a/src/app/auth/create/step-2.tsx
+++ b/src/app/auth/create/step-2.tsx
@@ -66,7 +66,7 @@ export function CreateStep2Screen() {
       if (!db.secureDB) db.secureDB = stronghold;
 
       // save privkey to secure storage
-      await db.secureSave(pubkey, privkey);
+      await db.secureSave(pubkey, privkey, pubkey);
 
       // redirect to next step
       navigate('/auth/create/step-3', { replace: true });
diff --git a/src/app/auth/import/step-2.tsx b/src/app/auth/import/step-2.tsx
index 42da6e81..e2975e8d 100644
--- a/src/app/auth/import/step-2.tsx
+++ b/src/app/auth/import/step-2.tsx
@@ -66,7 +66,7 @@ export function ImportStep2Screen() {
       if (!db.secureDB) db.secureDB = stronghold;
 
       // save privkey to secure storage
-      await db.secureSave(pubkey, privkey);
+      await db.secureSave(pubkey, privkey, pubkey);
 
       // redirect to next step
       navigate('/auth/import/step-3', { replace: true });
diff --git a/src/app/auth/lock.tsx b/src/app/auth/lock.tsx
new file mode 100644
index 00000000..ce65e55d
--- /dev/null
+++ b/src/app/auth/lock.tsx
@@ -0,0 +1,10 @@
+export function LockScreen() {
+  return (
+    <div
+      className="h-full w-full bg-cover bg-center"
+      style={{ backgroundImage: 'url(/wallpapers/1.png)' }}
+    >
+      <p>TODO</p>
+    </div>
+  );
+}
diff --git a/src/app/auth/unlock.tsx b/src/app/auth/unlock.tsx
index 4a8c2e4d..e4aa8d7d 100644
--- a/src/app/auth/unlock.tsx
+++ b/src/app/auth/unlock.tsx
@@ -33,6 +33,7 @@ export function UnlockScreen() {
   const navigate = useNavigate();
   const setPrivkey = useStronghold((state) => state.setPrivkey);
   const setWalletConnectURL = useStronghold((state) => state.setWalletConnectURL);
+  const resetStronghold = useStronghold((state) => state.reset);
 
   const [showPassword, setShowPassword] = useState<boolean>(false);
   const [loading, setLoading] = useState<boolean>(false);
@@ -73,6 +74,8 @@ export function UnlockScreen() {
   const logout = async () => {
     // remove account
     db.accountLogout();
+    // reset stronghold
+    resetStronghold();
     // redirect to welcome screen
     navigate('/auth/welcome');
   };
@@ -146,7 +149,7 @@ export function UnlockScreen() {
                   to="/auth/reset"
                   className="inline-flex h-10 w-full items-center justify-center rounded-lg text-center text-sm font-medium text-white/70 hover:bg-white/20"
                 >
-                  Reset password if you still have private key
+                  Reset password if you still have a private key
                 </Link>
                 <button
                   type="button"
diff --git a/src/app/splash.tsx b/src/app/splash.tsx
index d984041a..5715fc5f 100644
--- a/src/app/splash.tsx
+++ b/src/app/splash.tsx
@@ -68,7 +68,7 @@ export function SplashScreen() {
               </h3>
               {ndk ? (
                 <p className="text-sm text-white/50">
-                  Ensure all your data is sync across all Nostr clients, it may take a few
+                  Ensure all your data is sync across all Nostr clients. It may take a few
                   seconds, please don&apos;t close app.
                 </p>
               ) : null}
diff --git a/src/libs/storage/instance.ts b/src/libs/storage/instance.ts
index d68c1f9c..d57c384e 100644
--- a/src/libs/storage/instance.ts
+++ b/src/libs/storage/instance.ts
@@ -35,7 +35,6 @@ export class LumeStorage {
 
     const client = await this.getSecureClient(clientKey);
     const store = client.getStore();
-    console.log('insert key: ', key);
 
     await store.insert(key, Array.from(new TextEncoder().encode(value)));
     await this.secureDB.save();
@@ -46,7 +45,6 @@ export class LumeStorage {
 
     const client = await this.getSecureClient(clientKey);
     const store = client.getStore();
-    console.log('get key: ', key);
 
     const value = await store.get(key);
     if (!value) return null;
@@ -60,10 +58,10 @@ export class LumeStorage {
   }
 
   public async checkAccount() {
-    const result: Array<Account> = await this.db.select(
-      'SELECT * FROM accounts WHERE is_active = 1;'
+    const result: Array<{ total: string }> = await this.db.select(
+      'SELECT COUNT(*) AS "total" FROM accounts;'
     );
-    return result.length > 0;
+    return parseInt(result[0].total);
   }
 
   public async getActiveAccount() {
@@ -92,16 +90,24 @@ export class LumeStorage {
   }
 
   public async createAccount(npub: string, pubkey: string) {
-    const res = await this.db.execute(
-      'INSERT OR IGNORE INTO accounts (npub, pubkey, privkey, is_active) VALUES ($1, $2, $3, $4);',
-      [npub, pubkey, 'privkey is stored in secure storage', 1]
+    const existAccounts: Array<Account> = await this.db.select(
+      'SELECT * FROM accounts WHERE pubkey = $1 ORDER BY id DESC LIMIT 1;',
+      [pubkey]
     );
-    if (res) {
-      const account = await this.getActiveAccount();
-      return account;
+
+    if (existAccounts.length > 0) {
+      await this.db.execute("UPDATE accounts SET is_active = '1' WHERE pubkey = $1;", [
+        pubkey,
+      ]);
     } else {
-      console.error('create account failed');
+      await this.db.execute(
+        'INSERT OR IGNORE INTO accounts (npub, pubkey, privkey, is_active) VALUES ($1, $2, $3, $4);',
+        [npub, pubkey, 'privkey is stored in secure storage', 1]
+      );
     }
+
+    const account = await this.getActiveAccount();
+    return account;
   }
 
   public async updateAccount(column: string, value: string | string[]) {
@@ -191,7 +197,8 @@ export class LumeStorage {
 
   public async countTotalEvents() {
     const result: Array<{ total: string }> = await this.db.select(
-      'SELECT COUNT(*) AS "total" FROM events;'
+      'SELECT COUNT(*) AS "total" FROM events WHERE account_id = $1;',
+      [this.account.id]
     );
     return parseInt(result[0].total);
   }
@@ -206,8 +213,8 @@ export class LumeStorage {
     };
 
     const query: DBEvent[] = await this.db.select(
-      'SELECT * FROM events GROUP BY root_id ORDER BY created_at DESC LIMIT $1 OFFSET $2;',
-      [limit, offset]
+      'SELECT * FROM events WHERE account_id = $1 GROUP BY root_id ORDER BY created_at DESC LIMIT $2 OFFSET $3;',
+      [this.account.id, limit, offset]
     );
 
     if (query && query.length > 0) {
@@ -264,8 +271,8 @@ export class LumeStorage {
     };
 
     const query: DBEvent[] = await this.db.select(
-      `SELECT * FROM events WHERE kinds IN (${authorsArr}) ORDER BY created_at DESC LIMIT $1 OFFSET $2;`,
-      [limit, offset]
+      `SELECT * FROM events WHERE kinds IN (${authorsArr}) AND account_id = $1 ORDER BY created_at DESC LIMIT $2 OFFSET $3;`,
+      [this.account.id, limit, offset]
     );
 
     if (query && query.length > 0) {
@@ -284,7 +291,8 @@ export class LumeStorage {
 
   public async isEventsEmpty() {
     const results: DBEvent[] = await this.db.select(
-      'SELECT * FROM events ORDER BY id DESC LIMIT 1;'
+      'SELECT * FROM events WHERE account_id = $1 ORDER BY id DESC LIMIT 1;',
+      [this.account.id]
     );
 
     return results.length < 1;
@@ -351,9 +359,6 @@ export class LumeStorage {
   }
 
   public async accountLogout() {
-    // delete all events
-    await this.db.execute('DELETE FROM events WHERE account_id = $1;', [this.account.id]);
-
     // update current account status
     await this.db.execute("UPDATE accounts SET is_active = '0' WHERE id = $1;", [
       this.account.id,
diff --git a/src/shared/logout.tsx b/src/shared/logout.tsx
index ad0f5586..0ec00eaf 100644
--- a/src/shared/logout.tsx
+++ b/src/shared/logout.tsx
@@ -11,13 +11,13 @@ export function Logout() {
   const { db } = useStorage();
 
   const navigate = useNavigate();
-  const clearPrivkey = useStronghold((state) => state.clearPrivkey);
+  const resetStronghold = useStronghold((state) => state.reset);
 
   const logout = async () => {
     // remove account
     db.accountLogout();
     // clear privkey in session storage
-    clearPrivkey();
+    resetStronghold();
     // redirect to welcome screen
     navigate('/auth/welcome');
   };
diff --git a/src/shared/widgets/eventLoader.tsx b/src/shared/widgets/eventLoader.tsx
index d2bfcb44..56d8b9c6 100644
--- a/src/shared/widgets/eventLoader.tsx
+++ b/src/shared/widgets/eventLoader.tsx
@@ -56,7 +56,7 @@ export function EventLoader({ firstTime }: { firstTime: boolean }) {
           ) : (
             <div className="text-center">
               <h3 className="font-semibold leading-tight">
-                Downloading all events from your last login...
+                Downloading all events while you&apos;re away...
               </h3>
             </div>
           )}
diff --git a/src/stores/stronghold.ts b/src/stores/stronghold.ts
index c1454051..54c599e0 100644
--- a/src/stores/stronghold.ts
+++ b/src/stores/stronghold.ts
@@ -9,6 +9,7 @@ interface StrongholdState {
   setWalletConnectURL: (uri: string) => void;
   clearPrivkey: () => void;
   setIsFetched: () => void;
+  reset: () => void;
 }
 
 export const useStronghold = create<StrongholdState>()(
@@ -29,6 +30,9 @@ export const useStronghold = create<StrongholdState>()(
       setIsFetched: () => {
         set({ isFetched: true });
       },
+      reset: () => {
+        set({ privkey: null, walletConnectURL: null, isFetched: false });
+      },
     }),
     {
       name: 'stronghold',