How to lock WhatsApp with your phone’s biometric sensor

  • To lock WhatsApp on your phone, go to the app’s settings and enable fingerprint or FaceID lock.
  • You should unlock your phone every time you close WhatsApp or after one to 30 minutes.
  • You can protect your account with disappearing messages, chat archiving and two-step verification.

WhatsApp is a messaging app that prides itself on security. All text messages, chats and video calls are based on end-to-end encryption, so you can be sure that nothing you do on WhatsApp can be intercepted or monitored.

It’s possible to make WhatsApp even more secure by protecting the app itself with whatever biometric security your phone has, like fingerprints or Face ID. This way, even if someone gets physical possession of your phone, your WhatsApp messages will remain safe.

How to Lock WhatsApp on Android

You can use your Android phone’s fingerprint reader to make sure you’re the only one who can open the app.

1. Open WhatsApp on your Android device.

2. Press it menu with three dots in the upper-right corner of the screen, then select Settings.

WhatsApp on Android, with the option highlighted

Start by going to the Settings screen in WhatsApp.

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3. Puncture Privacy.

4. At the bottom of the screen, tap Fingerprint lock.

The privacy settings screen in WhatsApp on Android, with the option highlighted

Tap “Fingerprint Lock”.

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5. In the Fingerprint lock screen, activate Fingerprint unlock tapping on the toggle on the right.

6. Confirm your fingerprint by touching the sensor with one of the fingers registered to the phone.

7. Choose how long WhatsApp requires a fingerprint scan to re-enter the app after closing it. You can choose Immediately, After 1 minutethe After 30 minutes.

The screen

When you enable fingerprint lock, you can specify how long before a fingerprint is required to unlock the app.

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How to Lock WhatsApp on iPhone

You can lock WhatsApp on your iPhone with Face ID or Touch ID, depending on the iPhone model you have. No matter which iPhone you have, the process is the same.

1. Open WhatsApp on your iPhone.

2. Puncture Settings in the lower right corner of the screen.

WhatsApp on iPhone, with the option highlighted

Tap Settings in the lower right corner of the screen.

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3. Puncture Privacy.

4. At the bottom of the screen, tap Screen lock.

5. On the Lock Screen page, you’ll see either Face ID required the Touch ID required. Tap the toggle next to this option to enable this security feature.

6. Choose how much time is required before WhatsApp Face ID the Touch ID to re-enter the app after closing it. You can choose Immediately, After 1 minute, After 15 minutesthe After 1 hour.

The screen

When you enable Face ID or Touch ID lock, you can specify how long the app waits before requiring an unlock.

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Other ways to protect your WhatsApp messages

Apart from locking your phone, there are other ways you can protect your WhatsApp account and messages from unwanted access. Here are some more:

  • Turn on disappearing messages: If you want to send someone a message that deletes itself after a period of time, you can enable disappearing messages. Any message will then disappear after a day, a week or three months, depending on the time period you have chosen.
  • Archiving sensitive conversations: Instead of deleting messages to hide them from anyone watching your WhatsApp, you can archive their respective conversations. This will remove the conversations from the Conversations tab, but you can always access and restore them later from the Archived screen.
  • Enable two-step verification: In addition to biometrics, you can add an extra layer of protection to your account when setting up WhatsApp on a new phone by enabling two-step verification. To do this on both Android and iPhone, go to Settings > Account > Two-Step Verification and tap Turn On. You will then need to enter a password and email address (you can skip this).

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