Imposter Posing as US Secretary of State Sent AI-Generated Messages to Officials

Strategic Insights -

An unknown individual posed as US Secretary of State Marco Rubio, sending AI-generated voice and text messages to high-level officials and foreign ministers in July. The impersonator created a Signal account with the display name "Marco.Rubio@state.gov" and contacted at least three foreign ministers, a US state governor, and a member of Congress using both text messaging and the encrypted messaging app Signal. The Department of State is investigating the incident, which is believed to be the latest in a series of attempts by malicious actors to impersonate senior US officials.

Key Takeaways:

  • An imposter posing as US Secretary of State Marco Rubio sent AI-generated voice and text messages to at least three foreign ministers, a US state governor, and a member of Congress using the encrypted messaging app Signal.
  • The impersonator created a Signal account with the display name "Marco.Rubio@state.gov" and left voicemails for at least two targeted individuals.
  • The US Department of State is investigating the incident and has expressed concerns about its cybersecurity posture.
  • This incident is believed to be the latest in a series of attempts by malicious actors to impersonate senior US officials, including a robocall impersonating then-President Joe Biden that stoked public alarm about deepfakes.
  • The FBI has warned since April that malicious actors have been impersonating senior US officials to target their contacts.
  • Senior US officials, including former national security adviser Michael Waltz, have faced criticism for using unofficial channels for government work.
  • AI voice cloning tools, which are becoming increasingly cheap, easy to use, and hard to trace, are contributing to the proliferation of disinformation and deepfakes.

Statistics:

  • At least three foreign ministers, a US state governor, and a member of Congress were contacted by the impersonator.
  • The incident occurred in July.
  • "Malicious actors" have been impersonating senior US officials since April to target their contacts.
  • Since April, at least two high-profile incidents involving impersonation of US officials have been reported, including the robocall impersonating then-President Joe Biden.

Sources:

  • Washington Post
  • AFP
  • Wall Street Journal
  • FBI (no specific source date mentioned)