ChatGPT flaw lets attackers pull Gmail data across accounts via a hidden channel
A flaw in OpenAI’s ChatGPT allowed attackers to extract data from a victim’s connected Gmail account by passing hidden instructions between separate user sessions, according to research from Check Point. In a proof-of-concept, Check Point demonstrated that a victim’s ChatGPT session could retrieve email data and relay it to an attacker-controlled session within a single, seemingly normal interaction. “Check Point Research discovered a covert cross-account command channel through which an attacke