OpenAI Adds PIN Security to ChatGPT Conversations

Users can now secure specific chat threads behind a four-digit PIN or biometric authentication.

Updated on Oct. 20, 2026 in Artificial Intelligence

Isometric editorial illustration of a heavy steel bolt mechanism on a metallic surface, symbolizing digital security and data protection. — OpenAI has launched a security feature for ChatGPT, allowing users to lock specific conversations behind a four-digit PIN or biometric authentication. AI Illustration. Upload story photo >

Live Poll

Do you trust that new chat locking features are enough to keep your personal data private?

OpenAI has introduced a new locking feature for ChatGPT that allows users to secure sensitive conversations. The update moves protected chats into a dedicated section separated from general history and search results.

Why it matters

This feature provides a necessary layer of privacy for users who share their devices with others. By isolating these conversations, OpenAI ensures that sensitive data remains shielded from unauthorized access.

The new security layer utilizes a four-digit PIN, Face ID, or Touch ID to restrict access to chosen chat threads. Locked conversations operate with a shared memory system that remains distinct from the broader chat history.

The players

OpenAI

An artificial intelligence research organization that develops and manages the ChatGPT platform.

The details

Once a chat is secured, it is removed from standard search results and standard history to prevent accidental viewing. Users should note that resetting a security PIN will result in the permanent deletion of all content previously protected by that code.

OpenAI announced and initiated the rollout of the security feature on October 20, 2026.

The Tech Race

This move mirrors the industry-wide shift toward granular data privacy controls, similar to the Apple iOS Screen Time and App Lock privacy features. It represents a broader effort to differentiate AI platforms by enhancing trust and user security for enterprise and individual accounts.

Users across all ChatGPT plans, including Free and Enterprise, can now safeguard personal or sensitive data without locking their entire application. This change improves workflow privacy for those who frequently log in on shared or public devices.

The takeaway

Users should carefully manage their PINs, as resetting the code will permanently erase all data protected under the previous credential. This update is not compatible with temporary, shared, or archived chats, so users should prioritize manual management for those specific conversation types.