WhatsApp users updating to the latest version of the messaging app on iOS will find a new setting lurking at the bottom of the Privacy menu that adds support for Apple’s biometric authentication technologies.

Under the new setting, called “Screen Lock,” users of WhatsApp on iOS can tap through to another menu to add an additional layer of security by requiring either their facial biometric or a fingerprint to unlock the messaging app.

iPhone users are either offered the ability to “Require Face ID” or “Require Touch ID,” depending on their handset hardware.

The change, in version 2.19.20 of the WhatsApp iOS app, is listed as: