On May 14, 2026, OpenAI's ChatGPT desktop app for Mac faced a security breach linked to two employee devices. The incident was traced back to a compromised open-source library, prompting the company to initiate a software update for its users. This update will be fully deployed by June 12.
OpenAI assured users that there is no evidence of accessed user data or compromised systems. The company stated that only a limited amount of credential material was exfiltrated from its code repositories. To investigate the breach further, OpenAI has engaged a third-party digital forensics and incident response firm.
Mac users are advised to update the app when prompted, while those using Windows and iOS platforms are not required to take any action. OpenAI plans to provide additional guidance in the future. This breach marks the second security issue for the ChatGPT app on Mac, following a 2024 incident where user conversations were stored in plain text.