A deepfake video is basically the ol' switcheroo using video and mapping technology. You can potentially swap faces with anyone in the known world, henceforth speaking as that person. Kinda scary. A deepfake video that went viral recently, featured Jennifer Lawrence giving a post-Golden Globe speech, but with actor Steve Buscemi's face!
Buscemi appeared on The Late Show with Stephen Colbert and talked about his reaction to the video...
Here's more on the technology behind deepfake videos, and how scary these types of videos can be in this day and age.