WhatsApp has been working on implementing biometric authentication for Android phones. The latest WhatsApp beta update on Google Play Store shows a new development for biometric authentication.
As WABetaInfo notes, enabling biometric authentication on Android will block conversation screenshots. The description in the feature titled ‘Fingerprint security’ reads, “When enabled, fingerprint is required to open WhatsApp and conversation screenshots are blocked.”
This essentially means that those who use fingerprint sensor to lock/unlock WhatsApp will not be allowed to take screenshots of chats. Biometric authentication is still not available for WhatsApp users, and even public beta users. There’s no confirmation on whether this new update will come with biometric authentication.