The State Department is currently investigating an alarming case where an unidentified individual has been using artificial intelligence to impersonate Secretary of State Marco Rubio. This AI-driven impersonator has contacted multiple high-ranking officials, including foreign ministers, raising concerns about the increasing threat of AI voice scams. Reports indicate that the impersonator has utilized the Signal app to reach out to their victims, prompting the U.S. government to tighten cybersecurity measures. Officials emphasize that this impersonation incident serves as a stark warning about the potential risks posed by advancing AI technology in political and diplomatic contexts.