Users often have trouble finding ways to block their applications for security reasons. The App Store does not have tools for such purposes since Apple does not want to give third-party programs the ability to provide security in iOS. And blocking applications is needed, for example, for social networking clients. No one wants anyone to look in his chats and browse media files.
Fortunately, the WhatsApp app for iOS allows you to block unauthorized access with a password (in the absence of a Face ID or Touch ID). This method allows you to lock a program and protect chats in it from being viewed using the security mechanisms built into the operating system. Adding this great feature to a popular application worldwide is an expected and sensible move.
It would be great if Apple began to add application blocking features to its native iOS programs. In the meantime, we can hope that this security mechanism will be implemented by third-party developers for their applications.
How to put a security lock on WhatsApp in iPhone
1. Run on your smartphone WhatsApp.
2. At the bottom of the application, select the Settings tab.
3. Go to Account → Privacy.
4. Scroll to “Screen Lock” and tap it.
5. Tap the switch next to “Require Face ID” or “Require Touch ID”.
The presence of one or another option in the last step depends on the model of your iPhone. For iPhone X and newer, Face ID will be required, and for iPhone 8 and older versions, you will need to use Touch ID.
In the lower menu, you can choose the time of WhatsApp blocking: immediately after exiting the application, after 1 minute, after 15 minutes, after an hour or more. Choose the option that suits you.
Now, whenever you launch WhatsApp on your iPhone you will need to use Touch ID or Face ID to access your chat rooms.
In case the biometric sensor does not work, WhatsApp will offer to enter the iPhone lock code.