App locks keep anyone holding your phone out of WhatsApp Plus.
Steps
- Open Plus Settings, Privacy and security, Lock.
- Choose fingerprint, PIN or pattern.
- Set the auto lock delay.
- For single chats, open the chat menu and choose Lock.
Forgot your lock?
Use the recovery question. As a last resort, back up and clear app data.
Also see hidden chats.
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Written by AllWPlus Editorial Team
An independent team that writes practical WhatsApp Plus guides. We follow new builds and WhatsApp's own help pages, and update the handbook when either changes.
Last updated Oct 2026