“Deepfakes” refers to media that has been altered by artificial intelligence to make it appear that a person is doing or saying something that, in fact, that person has never done or said. The technology first began appearing a few years ago, with crude deepfake tools allowing users to make it look like celebrities were recorded engaging in sexual activities they actually didn’t take part in.

But deepfakes are now moving past the porn realm and into the criminal world where bad actors are using the tech to impersonate CEOs, Axios reports. However, for now, it appears criminals are using deepfake audio instead of video.