It sounds like a plot out of a spy novel, with a touch of cyberpunk: An agent approaches a secure location, protected by a facial recognition system, accessible only to a head of state or CEO. Flashing an unusually shaped earring, the agent tricks the system into thinking they're that VIP, opening the door and exposing the secrets inside. The key—an undetectable "sleeper cell" was placed inside the AI behind the security system months or years earlier to grant access to anyone wearing the specified jewelry.
* This article was originally published here