Click 3 dots on top > Settings
- Two-step verification > Turn on > Create a secure PIN (123456 or 098765 is not a secure PIN.)
NOTE: When asked for Email, make sure you provide an email which has adequate security measures like a strong password and 2FA enabled. Alternatively you can skip this, but then if you forget your PIN, you won't be able to re-register your phone number with WhatsApp.
- Who can see my last seen: Nobody
- Who can see when I'm online: Same as last seen
- Who can see my Profile Photo: Do not select Everyone
- Who can see my About: Do not select Everyone
- Off
- Select whatever suits you
- For enabling disappearing messages for existing chats: Go to a particular chat > Click 3 dots > Disappearing messages
- Who can add me to groups: Do not select Everyone
- Check with whom you're sharing your live location and disable accordingly.
- Silence unknown callers: On
- Unlock with fingerprint: On
- Protect IP address in calls: On (Will reduce call quality)
- When using mobile data: Uncheck everything
- When connected on Wi-Fi: Uncheck everything
- When roaming: Uncheck everything