Deepfakes (a portmanteau of "deep learning" and "fake") are synthetic mediain which a person in an existing image or video is replaced with someone else's likeness. While the act of faking content is not new, deepfakes leverage powerful techniques from machine learning and artificial intelligence to manipulate or generate visual and audio content with a high potential to deceive.The main machine learning methods used to create deepfakes are based on deep learning and involve training generative neural network architectures, such as autoencoders or generative adversarial networks (GANs).
Deepfakes have garnered widespread attention for their uses in celebrity pornographic videos, revenge porn, fake news, hoaxes, and financial fraud. This has elicited responses from both industry and government to detect and limit their use.
Pieter, yes, this is a real problem. There were situations of people being accused of something due to deep fakes. At least this Obama's video looks a bit weird... and Trump could say whatever he wanted and some people still love him. But the internet is a dangerous world. On the other hand we are getting more used to information spread, and people are more aware of the dangers.