AI-Generated Deepfake of Japanese Defense Minister Used in Impersonation Scam
Japanese Defense Minister Shinjiro Koizumi warned of an AI-generated deepfake impersonation scam in which callers claiming to be his secretaries initiated video calls showing deepfake video and audio of him with disjointed responses. Koizumi stated the scheme was sophisticated and said police would investigate, warning of potential election misinformation risks during the February 2026 Lower House election.
What happened
Between January 26-29, 2026, multiple people contacted Defense Minister Shinjiro Koizumi's office reporting suspicious phone calls from individuals impersonating his secretaries. In some cases, callers claiming to be the minister's secretaries initiated video calls via WeChat with deepfake video and audio of the minister that exhibited disjointed responses, apparently generated using AI.
Reported impact
Koizumi stated the scheme was sophisticated and malicious. He warned that the impersonations could spread election misinformation during the Lower House election held on February 8, 2026, in which he was a candidate in Kanagawa's 11th district.
Index analysis
While deepfake content of Koizumi has existed online as memes and parody videos, this incident represents a new tactic combining synthetic media with social engineering and impersonation for potential fraud or disinformation purposes.
Governance controls
Koizumi advised recipients of suspicious calls not to respond and to report them to his office. He stated he would consult with police and take strict action against the malicious behavior.
Classification
Sources and evidence
This record was researched and written by the Index, based on the following original reporting.