OpenAI launches Codex black screen lock takeover function, preventing physical peeping and locking upon touching physical keys According to Beating monitoring, OpenAI's Agent product Codex has launched a locked screen control function, which supports users to remotely and securely take over and operate computer software through mobile devices such as smartphones when their Mac is in a locked and black screen state. To achieve secure hosting in a locked state, Codex will introduce Apple authorized low-level auxiliary plugins in the macOS system to deeply integrate into the system level unlocking process. When the mobile terminal initiates an operation request, this plugin will quietly and temporarily unlock the system in the background to run the target application. During this period, the system will completely block local physical keyboard and mouse pointer input, while projecting a pure black overlay to all connected displays, completely "blinding" the local screen physically, ensuring that the computer appearance always remains black and locked. This backend automatic unlocking channel is subject to extremely strict security boundary restrictions. It will only be enabled during the brief control period of mobile security authentication, and cannot be called by other local software or third-party processes. During operation, once the system detects that the local physical keyboard or mouse is touched, it will instantly trigger an alarm, immediately retract the background unlock status and pull up the lock screen, pause all automatic operations until the user manually unlocks on site. In addition, for security reasons of preventing privilege escalation, this mechanism is essentially a restricted "invisible sandbox" that cannot take over terminal applications, cannot affect Codex itself, and cannot privately perform administrator identity authentication (Sudo) or approve system privacy security pop ups. [Original link]