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Security Operations · Intermediate

Deepfake

Synthetic audio, video or images generated with AI to convincingly impersonate a real person.

Definition

Deepfakes are used in vishing, fraudulent video calls, disinformation and to bypass voice or face biometrics. A 2024 case in Hong Kong saw an employee transfer about 25 million US dollars after a video call with deepfaked executives. Verification through separate channels and code words mitigate it.

Example

A finance employee joins a video call where the "CFO" is an AI-generated deepfake requesting transfers.

Exam tip

Out-of-band verification is the control; detection tools alone are not reliable.

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