Rolling out secret code to Chat Lock on WhatsApp so you can protect your chats with a unique password. Now you can set your locked chats to only appear when you type the secret code in the search bar, so no one can “unintentionally” discover your most private conversations.

“Rolling out secret code to Chat Lock on WhatsApp so you can protect your chats with a unique password,” Meta CEO Mark Zuckerberg announced today on his WhatsApp Channel. “Now you can set your locked chats to only appear when you type the secret code in the search bar, so no one can ‘unintentionally’ discover your most private conversations.”

It’s worth noting that you don’t have to use a secret code, and can still choose to have your locked chats appear in your chatlist if you would like.

Secret codes start rolling out today, and will be available globally in the coming months.

WhatsApp rolled out Chat Lock back in May to let users lock chats and put them in their own folder that can only be accessed with your device password, face ID or fingerprint. At the time, Meta said it planned to allow users to create a custom password for their chats so they could use a unique password different from the one they use for their phone. Now, six months later, the company has fulfilled its promise.

The launch of the new feature comes a few weeks after WhatsApp rolled out a new Discord-like voice chat feature for large groups called “Voice Chats.” The new feature is designed to be less disruptive than a group call, which rings every member in a group. Voice chats are started quietly without any ringing involved with an in-chat bubble that you tap to join.