Spring Sale: Get 1 Year, Save 58%

Wael Abd-Almageed

A White House aide takes the microphone from CNN's Jim Acosta, during a news conference in the East Room of the White House, Wednesday, Nov. 7, 2018. A doctored video of this incident went viral. (AP/Evan Vucci)

Examining a video’s changes over time helps flag deepfakes

Wael Abd-Almageed