Microsoft Threat Intelligence has discovered a new macOS vulnerability, dubbed “HM Surf”, that allows attackers to bypass the operating system’s Transparency, Consent, and Control (TCC) technology and gain unauthorized access to protected user data. The vulnerability involves removing TCC protection for the Safari browser directory and modifying a configuration file to access user data, including browsing history, camera, microphone, and location, without user consent. Microsoft has reported the vulnerability to Apple, which has released a fix as part of a macOS security update. Users are urged to install the update as soon as possible to mitigate the risk. This vulnerability highlights the importance of keeping operating systems and applications updated to protect against emerging threats and the persistent challenges of maintaining robust security in complex software environments.