Deepfakes are fake videos or audio recordings that look and sound just like the real thing. Once the bailiwick of Hollywood special effects studios and intelligence agencies producing propaganda, like the CIA or GCHQ's JTRIG directorate, today anyone can download deepfake software and create convincing fake videos in their spare time.
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So far, deepfakes have been limited to amateur hobbyists putting celebrities' faces on porn stars' bodies and making politicians say funny things. However, it would be just as easy to create a deepfake of an emergency alert warning an attack was imminent, or destroy someone's marriage with a fake sex video, or disrupt a close election by dropping a fake video or audio recording of one of the candidates days before voting starts.
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