<ul data-eligibleForWebStory="false">AI voice deepfake of Marco Rubio targeted US lawmakers and diplomats in fraud attempt.An individual impersonated Secretary of State Marco Rubio using AI-generated deepfake voice to contact government officials.The impersonator left voicemails posing as Rubio on Signal, impersonating other State Department officials via email.Officials are concerned about manipulation tactics to extract sensitive information and are enhancing cybersecurity measures.