Case rubio-ai-impersonationDeepfake fraudUnited States
AI voice impersonator of Marco Rubio contacts foreign ministers via Signal
A State Department cable warned an impostor used AI-generated voice and text on Signal to pose as Secretary Rubio, contacting three foreign ministers, a governor and a member of Congress.
HighAttack using AIStatus: Under investigationVerified case file
Open in the interactive mapCite this case
- Reported
- Jul 8, 2025
- Location
- United States
- Target
- US State Department / senior officials
- Severity
- High
- Triggered by
- Unknown impostor
- Actor type
- Unknown
- Reported loss
- None reported
- CVE
- None
What happened
A State Department cable warned an impostor used AI-generated voice and text on Signal to pose as Secretary Rubio, contacting three foreign ministers, a governor and a member of Congress.
Impact: At least five non-Department individuals contacted; no confirmed compromise of information or accounts was publicly reported
Who triggered it
Actor: Unknown impostor
Attribution: Not publicly attributed; State Department cable said identity unknown; FBI had warned in May 2025 of similar impersonation of senior US officials
Motive: Likely access to information or accounts of targeted officials (per State Department cable)
How it happened
Attack vector: Signal account with display name Marco.Rubio@state.gov sending AI-generated voicemails and text messages mimicking Rubio's voice and writing style
Root cause: Public availability of Rubio's voice samples for cloning; reliance on consumer messaging apps where identity is unverified
Timeline
- FBI warns of AI voice and text campaigns impersonating senior US officials
- Impostor contacts three foreign ministers, a US governor and a member of Congress via Signal in mid-June
- State Department cable alerts diplomatic posts to the impersonation
- Washington Post and Reuters report the cable publicly
Response
State Department opened an investigation, warned partners about fake accounts and advised officials to report impersonation attempts to Diplomatic Security
Current status: Under investigation
Sources (open in a new tab)
- Anchorage Daily News (Washington Post) adn.com
- KSL (Reuters) ksl.com
- Yahoo News yahoo.com
Cite this case
AI voice impersonator of Marco Rubio contacts foreign ministers via Signal. AI Threat Watch, case rubio-ai-impersonation, Jul 8, 2025. https://aithreat.io/cases/rubio-ai-impersonation/
Permanent link: https://aithreat.io/cases/rubio-ai-impersonation/