Privacy and security are becoming increasingly important in messaging apps like WhatsApp and Telegram, regardless of whether they are used for personal or professional purposes. These platforms provide a means for us to have highly private conversations with our contacts, whether on mobile devices or desktop PCs. Recognizing this, developers and app administrators, such as those behind WhatsApp, are continuously working to make our experience more secure and convenient.
One area of focus is enhancing privacy and security features. Many of us are aware that if someone gains access to our mobile device, they could potentially view our messaging app conversations. While some may not be bothered by this, others consider it a significant concern. We might find ourselves in situations where others have access to our phone, but we do not want them to read our WhatsApp conversations.

That’s why we are pleased to share news about a highly anticipated feature that has finally arrived in the messaging application. It is the ability to protect specific chats within the app using a password or fingerprint. This feature, known as Chat Lock, offers a way to safeguard our most personal conversations. Meta, the parent company of WhatsApp, has already begun gradually rolling out this feature to its users.
With Chat Lock, you can now have greater control over the privacy of your conversations on WhatsApp, ensuring that only authorized individuals can access them. This new function represents a significant step forward in securing our personal information within the app.
How WhatsApp chat lock works
To provide you with an overview of how the Chat Lock function operates, it essentially creates a designated folder that can be secured with a password or biometric authentication, such as a fingerprint. Activating this privacy feature is as simple as tapping on the name of a chat. It’s worth noting that this functionality can be applied to both individual and group chats, giving you control over the privacy of your conversations in WhatsApp.

Furthermore, when a chat is locked, it is removed from the main inbox and moved to a separate folder. Access to this folder is restricted to the password, fingerprint, or facial recognition that we have set up on our mobile device. In addition, the function we are discussing also ensures that the details of the locked chat are hidden in notifications, providing an additional layer of privacy. With these measures in place, we effectively prevent others from accessing the locked chat if they happen to use our mobile device.
Undoubtedly, this new feature will be greatly appreciated by individuals who share their phone with family members or their partners. It provides an added layer of privacy, preventing others from accessing protected chats. Even if a message arrives in the locked chat while someone else is using the phone, they won’t be able to see the notifications. It’s worth noting that this is just the initial implementation of the feature, as WhatsApp plans to further enhance its functionality with new tools in the future.