You Can Now Lock Your Private ChatGPT Conversations With a PIN

If you have personal conversations with ChatGPT that you don't want others to see, you can now add an extra layer of security for those specific chats. The new Locked Chats feature allows you to hide sensitive conversations behind a four-digit account PIN (or biometric authentication on mobile), meaning others with access to your device or screen can't read them. Locked chats are retained in your chat history—unlike temporary chats, which are private conversations that aren't saved by default—so you can return to or continue them at any point. However, once locked, they are hidden from your regular chat history, pinned chats, and regular conversation search.