In less than a year, the number of deepfake videos online has jumped 84%, prompting respondents in a Pew Center survey to say they expect 57% of news shared on social media to be “largely inaccurate.” Amid concerns about deepfakes, about three-quarters of people in the U.S. favor steps to restrict altered videos and images, and companies such as Google and Facebook have released data sets and AI models designed to detect deepfakes.