ChatGPT adds locked chats feature with PIN and Face ID: How to protect private conversations

OpenAI has introduced Locked Chats, a ChatGPT feature that protects individual conversations from unwanted access. Announced on Tuesday, 20 October 2026, it lets users secure private chats with a four-digit PIN or, on supported devices, biometric authentication such as Face ID or Touch ID. It is aimed at people who share their phone or computer with others.

The feature will roll out in stages across ChatGPT’s Free, Go, Plus, Pro, Business, Enterprise and Edu plans.