Add Yahoo as a preferred source to see more of our stories on Google. New study reveals deepfakes can fake a heartbeat, making them harder to detect and raising the stakes for digital forensics.

Deepfake videos can now reproduce the tiny heartbeat signals that run beneath the skin. These signals normally appear as subtle changes in skin color from blood flow, invisible to the naked eye but ...

Deepfakes are spreading fast and spotting them is no longer as easy as noticing a glitch or an unnatural expression. Digital forgeries have grown so advanced that even biological markers, once ...