How to Lock Chats in GB WhatsApp with PIN or Fingerprint
Your phone may be unlocked when you hand it to a friend or family member, but that doesn’t mean you want them reading your chats. GB WhatsApp lets you lock the whole app or individual conversations with a PIN, pattern or fingerprint. This guide covers both options, plus how to avoid getting locked out yourself.
App Lock vs Chat Lock
| Option | What it protects | Where to set it |
|---|---|---|
| App lock | The whole GB WhatsApp app | GB Settings, Privacy and Security |
| GB chat lock | Selected individual chats | Long-press a chat or chat menu |
| Official chat lock | Selected chats in a hidden folder | Chat info screen |
You can use one or combine them, for example locking the whole app and also hiding your most private chat.
How to Lock the Whole App
- Open GB WhatsApp.
- Tap the three-dot menu, then GB Settings.
- Open Privacy and Security.
- Tap App lock or Lock GB WhatsApp.
- Choose PIN, pattern or fingerprint.
- Set your PIN or pattern, and confirm it.
- Choose when the lock should activate, such as immediately or after a minute.
From now on, GB WhatsApp asks for your PIN, pattern or fingerprint every time it opens.
How to Lock a Single Chat (GB Method)
- On the chats list, long-press the chat you want to lock.
- Tap the three-dot menu at the top.
- Choose Lock chat.
- Set or confirm your PIN, pattern or fingerprint.
The chat now needs authentication to open. Notifications from it may show “new message” without the content, depending on your settings.
How to Use the Official Chat Lock
GB WhatsApp also includes WhatsApp’s own chat lock, because it’s built on the official base:
- Open the chat and tap the contact or group name.
- Scroll down and turn on Chat lock.
- Confirm with your fingerprint or phone’s screen lock.
Locked chats move to a Locked chats folder at the top of your chat list. You can also set a secret code so the folder only appears when you search for it.
Hide Chats Completely
If you’d rather a chat didn’t appear in your list at all, GB WhatsApp has a hidden chats feature. Our guide on hiding chats in GB WhatsApp explains how to use it.
Don’t Lock Yourself Out
- Use a PIN you’ll remember, not a random one.
- Add fingerprint as well as PIN, so you have two ways in.
- Some builds include a security question for recovery. Set it up.
- Make regular backups, so you can reinstall and restore if you get locked out.
Forgot Your GB WhatsApp Lock PIN?
| Situation | What to try |
|---|---|
| Fingerprint still works | Use fingerprint, then change the PIN |
| Recovery question set | Use the Forgot PIN option and answer it |
| No recovery option | Clear app data or reinstall, then restore your backup |
Clearing data or reinstalling removes the lock but also removes chats that aren’t backed up. That’s why regular backups matter. See our backup and restore guide.
App Lock Not Working?
| Problem | Fix |
|---|---|
| Lock doesn’t appear on opening | Check the lock delay, set it to Immediately |
| Fingerprint option missing | Register a fingerprint in your phone’s settings first |
| Notifications show message content | Turn off message previews in notification settings |
| Lock disappeared after update | Set it up again in GB Settings |
Lock vs Two-Step Verification
App lock protects your chats on your phone. Two-step verification protects your account if someone tries to register your number on another phone. Use both. Turn on two-step verification in Settings, then Account.
Choosing a Good Lock
| Lock type | Strength | Convenience |
|---|---|---|
| Fingerprint | Strong | Very convenient |
| PIN (6 digits or more) | Strong | Convenient |
| Pattern | Medium, can be seen over your shoulder | Convenient |
| Short PIN (4 digits) | Weaker | Very convenient |
For most people, fingerprint plus a 6-digit PIN backup is the best balance.
Avoid Easy-to-Guess PINs
Don’t use birthdays, 1234, 0000 or your phone’s unlock PIN. People who know you can guess these. Choose a number that’s meaningful only to you.
Lock and Hidden Chats Together
For the most private conversations, hide them and lock the app. Even if someone gets past the app lock, they won’t see hidden chats unless they know your hidden chats pattern. See our hide chats guide.
Locks and Linked Devices
App lock only protects GB WhatsApp on your phone. If your account is linked to WhatsApp Web on a computer, anyone using that computer may see your chats. Review linked devices and log out of computers you don’t control.
Locks and Kids
If children use your phone for games or videos, an app lock keeps them from accidentally opening chats or sending messages. It’s a simple way to protect both your privacy and theirs.
Conclusion
GB WhatsApp gives you several ways to keep chats private: lock the whole app, lock individual chats, or use the official locked chats folder. Set up a PIN you’ll remember, add a fingerprint, and keep backups so a forgotten PIN never costs you your messages. For more privacy options, see our GB WhatsApp privacy settings guide.
Frequently Asked Questions
Yes. Go to GB Settings, Privacy and Security, App lock, and choose fingerprint.
Yes. Long-press the chat, open the menu and choose Lock chat, or use the official Chat lock in chat info.
Use your fingerprint or recovery question if set. Otherwise, reinstall and restore from a backup.
They can, but you can hide message previews so the content doesn’t appear.
No. App lock protects the app on your phone, while two-step verification protects your account from being registered elsewhere.