How To Use WhatsApp Chat Lock {In 2024}

WhatsApp Chat Lock – WhatsApp has become an integral part of our daily communication with over 2 billion users worldwide.

The popularity of WhatsApp can be attributed to the many useful features it offers, including end-to-end encryption for secure messaging. One such feature that provides an extra layer of privacy is WhatsApp’s chat lock functionality.

With WhatsApp chat lock, users can lock specific chats that require biometric authentication or security code to access. This prevents unauthorized access to important conversations when someone else uses your phone.

Use WhatsApp Chat Lock

In this comprehensive guide, we will go through everything you need to know about locking your WhatsApp chats in 2023. We will cover:

  • How to enable and use WhatsApp chat lock on Android devices
  • How to enable and use WhatsApp chat lock on iPhones
  • Reasons to use chat lock for privacy
  • Locking work chats separately from personal ones
  • Temporarily locking chats when lending your phone to others
  • Unlocking and disabling the chat lock
  • WhatsApp support for chat lock and authentication
  • Tips for using chat lock effectively

Whether you want to lock chats containing sensitive information or prevent snooping when your phone is with others, this guide will help you fully utilize the WhatsApp chat lock feature. Let’s get started!

How To Set Up Chat Lock on WhatsApp for Android:

How To Set Up Chat Lock on WhatsApp for Android

Here are the steps to enable WhatsApp chat lock on your Android smartphone:

1. Open WhatsApp and go into the specific chat you want to lock.

2. Tap on the contact name at the top and select “Lock Chat”.

3. Turn on the toggle next to “Lock Chat” to enable the feature.

4. Choose whether you want to immediately lock the chat or lock it manually later.

5. Select the authentication method you want to set up – fingerprint, face unlock, passcode, or pattern lock.

6. Follow the on-screen instructions to register your fingerprint or set the passcode/pattern accordingly.

7. The chat will now show a lock icon indicating that it is locked.

8. To view the locked chat, you need to authenticate using your registered fingerprint or input your passcode/pattern.

9. Once unlocked, you can access the chat normally until it auto-locks again after a duration you set.

10. To disable chat lock, go back to the chat settings and turn off the “Lock Chat” toggle.

How To Enable Chat Lock on WhatsApp for iPhone:

How To Set Up Chat Lock on WhatsApp for Android

Follow these steps to lock WhatsApp chats on your iPhone or iPad:

1. Open WhatsApp and navigate to the chat you want to lock.

2. Tap the contact’s name and select the “Lock Chat” option.

3. Turn on the toggle next to “Lock Chat” to enable the feature.

4. Authenticate with Face ID or Touch ID as prompted to confirm enabling chat lock.

5. The chat will now display a lock icon, indicating it is locked.

6. To view the locked chat, use Face ID or Touch ID again to unlock it.

7. Once unlocked, you can access the chat as usual until it locks again.

8. To permanently disable chat lock, go back to the chat settings and toggle off “Lock Chat”. Authenticate with Face ID/Touch ID again to confirm.

Why You Should Use WhatsApp Chat Lock for Privacy:

Why You Should Use WhatsApp Chat Lock for Privacy

Here are some common scenarios where locking your WhatsApp chats can enhance privacy:

Secure Sensitive Conversations

You can lock chats containing private financial information, medical records, personal photos, or confidential work documents. Locking prevents unauthorized access.

Temporary Lending of Your Phone

When someone needs to briefly use your phone to make a call or click a photo, you can temporarily lock chats to hide any private messages.

Keep Work Chats Separate

If you use WhatsApp for both personal and work purposes, you can lock office conversations to maintain separation between the two.

Prevent Snooping of Messages

Locking specific chats prevents anyone from casually browsing through them and reading your private conversations if they access your unlocked phone.

Manage Chats from Previous Jobs

Employees switching jobs can lock old work-related chats and hide them from their successors who may use the same device.

How To Use Chat Lock for Work/Personal Chat Separation:

A common use case for WhatsApp’s chat lock feature is to separate work and personal chats. Here is how you can lock work-related conversations:

1. Create a separate WhatsApp account for work purposes with your office number.

2. On your personal account, go into each work chat you want to lock. Enable “Lock Chat” for these conversations.

3. Set up a strong passcode as the authentication method for unlocking work chats.

4. On your official work account, lock any private chats using a different unlock passcode.

5. This ensures the privacy of both personal and work messages on the same device.

6. When handing over your device to a colleague or new employee, keep work chats locked to maintain confidentiality.

7. If you no longer need old work chats, disable the lock and delete the conversations before giving your device to someone else.

Temporarily Locking Chats When Lending Phone:

Temporarily Locking Chats When Lending Phone

If you need to briefly lend your phone to someone, follow these steps to temporarily lock chats and protect your privacy:

1. Open the WhatsApp chat list and tap the 3-dot menu button.

2. Select “Lock Chats” to lock all current chats instantly with one tap.

3. You can also individually lock specific chats before lending your phone.

4. Hand over your device without worrying about exposing your private messages.

5. Once you get the phone back, open WhatsApp and unlock chats using your authentication method.

6. The 3-dot menu has the “Unlock Chats” option to instantly unlock all locked conversations.

7. This temporary locking lets you privately lend your phone when required.

Unlocking and Disabling Chat Lock on WhatsApp:

Unlocking and Disabling Chat Lock on WhatsApp

Here are the steps to unlock and disable locked chats:

To Unlock a Chat:

1. Open the locked WhatsApp chat you want to view.

2. Authenticate using your registered fingerprint or enter your passcode/pattern as prompted.

3. The chat will unlock allowing you to view and send messages until it auto-locks again.

To Permanently Disable Lock:

1. Go into the chat settings of a locked conversation.

2. Turn off the toggle next to the “Lock Chat” option to disable it.

3. Authenticate once more with your fingerprint or security code as a confirmation.

4. The chat will no longer be locked and the lock icon will disappear.

WhatsApp Support for Chat Lock & Authentication:

WhatsApp Support for Chat Lock & Authentication

Let’s look at some key points about WhatsApp’s implementation of chat lock and authentication support:

  • Chat lock is enabled within WhatsApp’s contact info and settings for individual chats.
  • Fingerprint unlock uses the phone’s built-in fingerprint sensor and support varies across devices.
  • Face unlock uses the front camera and face mapping features on supported phones.
  • Passcode lock allows a 4-12 digit PIN and is available universally across devices.
  • Pattern lock enables unlocking by tracing a pattern across a 3×3 grid of dots.
  • WhatsApp allows users to select and set up their preferred authentication method.
  • Authentication is required every time to view locked chats and again to disable the lock.
  • Locked chats automatically stay locked even when WhatsApp is closed and reopened.
  • Users can choose a duration after which inactive locked chats will auto-lock again.

Tips for Using WhatsApp Chat Lock Effectively:

Here are some tips to use WhatsApp chat locking effectively:

  • Set up the most secure authentication method available on your phone like fingerprint or face unlock.
  • Make sure to register multiple fingers if using fingerprint unlock for reliability.
  • Create a strong passcode with letters, numbers, and symbols for passcode/pattern lock.
  • Lock the most private or confidential chats instead of all chats.
  • Temporarily disable the chat lock when handing your phone over to someone you trust completely.
  • Lock work chats before giving your device to colleagues if you use WhatsApp for business.
  • Always authenticate before disabling the chat lock as a security best practice.
  • Periodically change your unlock passcode or pattern to improve security.
  • Caution Chat recipients are not to share any sensitive media or documents you send via locked chats.

Frequently Asked Questions

Q. Which chats should I lock on WhatsApp?

Ans: You can lock any chat containing private or sensitive information you want to keep secure. This includes personal, financial, medical, or confidential work-related conversations.

Q. Does locking a chat notify the contact?

Ans: No, locking a chat is not notified to the recipient and is entirely on the sender’s side for privacy. The contact can send and view messages as normal.

Q. Can I still receive messages in a locked chat?

Ans: Yes, you can still receive incoming messages in a locked WhatsApp chat. You need to authenticate to view them.

Q. Will my messages in a locked chat remain end-to-end encrypted?

Ans: WhatsApp’s end-to-end encryption for messages remains fully functional even in locked chats for security.

Q. Can I still take screenshots of a locked chat?

Ans: Screenshots can still be taken once you unlock the chat. But it requires authentication again if auto lock duration is enabled.

Q. What happens if I forget my unlock passcode?

Ans: You need to register your number again on WhatsApp to reset the passcode. All end-to-end encrypted chat history will be deleted.

Q. Can I recover a deleted locked chat?

Ans: No, locked chats deleted from WhatsApp cannot be recovered even if you have a backup due to encryption.

Q. Is there any limit on enabling chat lock?

Ans: There is no limit on the number of chats you can lock with authentication on WhatsApp.

Q. Will chat lock prevent deleting messages?

Ans: No, the lock only prevents viewing chats. Anyone with access to your phone can still delete locked chats.

Q. Can I lock chats on WhatsApp Business accounts?

Ans: Yes, the chat lock feature is available on both WhatsApp personal & business accounts.


WhatsApp’s chat lock feature provides an extra layer of privacy by letting you lock specific conversations. It prevents unauthorized access to your private messages on both Android and iOS devices using biometric authentication or security codes.

Implement a strong unlock screen credential and use chat locking judiciously for chats containing highly confidential data. This handy privacy feature will give you better control over your WhatsApp chats in 2023 and beyond.

The Founder and admin of, Who Likes To Write On Any Topic Related To Computer Query, Such As PC Hardware Problems, PC BIOS Problem and I have also best Knowledge in Android, SEO, and Much More.

Leave a Comment