Agent Under Fire: OpenAI Hardens ChatGPT Atlas Against “Invisible” Resignation Attacks Vulnerability Agent Under Fire: OpenAI Hardens ChatGPT Atlas Against “Invisible” Resignation Attacks ddos December 24, 2025 OpenAI has released a security update for ChatGPT Atlas, a browser equipped with a built-in “agent mode”... Read More Read more about Agent Under Fire: OpenAI Hardens ChatGPT Atlas Against “Invisible” Resignation Attacks