Deepfake CAPTCHA: A Method for Preventing Fake Calls

Understand

Deep learning technology has made it possible to generate realistic content of specific individuals.

• These `deepfakes' can now be generated in real-time which enables attackers to impersonate people over audio and video calls.
• Moreover, some methods only need a few images or seconds of audio to steal an identity.
• Existing defenses perform passive analysis to detect fake content.