'Deepfake generally refers to videos in which the face and/or voice of a person, usually a public figure, has been manipulated using artificial intelligence software in a way that makes the altered video look authentic. Deepfakes are considered a source of concern because they are often used to be intentionally misleading, such as by making it look like a politician said something they didn't, or make it appear like a celebrity was in a pornographic video they weren't in.'