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Attempted deepfake CEO voicemail fraud against an unnamed technology company

An attacker used synthetic audio deepfake to leave a voicemail impersonating the CEO of a technology company, asking an employee to call back to finalize an urgent business deal. The employee found it suspicious and referred the matter to the legal department, avoiding any loss. Nisos analyzed the audio and found inconsistencies in pitch and tone.

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This incident was imported from nisos.com. Our additions to it — the structured fields, the translation, the checks against other reports — are published under the same licence.

This is a record of what was reported, not a finding that anyone broke the law. If it names your organisation and you believe it is wrong, the corrections process is free and open to everyone.