WhatsApp enables users to safeguard their messages by adding a biometric screen lock, ensuring that unauthorized persons cannot access the app. The feature uses the built-in fingerprint scanner in Android devices and Touch ID or Face ID in iPhones, depending on the device model. The process of adding a screen lock to WhatsApp is relatively easy and can be done in just a few taps.
WhatsApp is one of the most popular instant messaging apps globally on both Android and iOS. However, while iMessage
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