Active liveness — blink, smile, turn your head — assumes an attacker can't make a fake face perform. Real-time reenactment broke that assumption: a deepfake can now follow any challenge as naturally as a live user. The face passes the test because the test measures behavior, not authenticity.
Effective deepfake defense inspects how the image itself was formed, and whether the capture pipeline was tampered with. That's why SpoofSense is passive: instead of asking the face to prove itself, we interrogate the pixels and the stream. Genuine users do nothing; synthetic faces have nowhere to hide.
Our research team publishes openly on the hardest problem in this field — detecting fakes from generators never seen in training. Read the latest: Detecting What You've Never Seen: OOD Robustness in Forgery Detection.