WhatsApp Settings ​
Open the three-dot menu in the top right corner and open Settings.
Account ​
- Two-step verification -> Turn on -> Create a secure PIN
Privacy ​
Last seen and online ​
- Who can see my last seen: Nobody
- Who can see when I'm online: Nobody
Profile photo ​
- Who can see my Profile Photo: Do not select
Everyone
About ​
- Who can see my About: Do not select
Everyone
Read receipts ​
- Turn Off
Default message timer ​
- Default timer for new chats: Select whatever suits you
- To enable disappearing messages for existing chats:
- Go to a particular chat -> Tap on three dots on top -> Disappearing messages
Groups ​
- Who can add me to groups: Do not select
Everyone
Live location ​
- Turn off everywhere
Calls ​
- Silence unknown callers: On
App lock ​
- Unlock with biometric: On
Advanced ​
- Protect IP address in calls: On
- Disable link previews: On
Storage and data ​
Media auto-download ​
- When using mobile data: Uncheck everything
- When connected on Wi-Fi: Uncheck everything
- When roaming: Uncheck everything