Zao is yet another deepfake app that allows you to swap your face and place it into several scenes from popular movies and TV shows. The app was released on Friday and has quickly overtaken all the other free apps in the entertainment section of the Chinese iOS App Store. Users were so excited about the experience that they generated over eight million views on Chinese microblogging site Weibo with Zao-generated content.
Even though it has a limited library of videos to choose from, the app seems to do a very quick and convincing job of overlaying your face on top of that of high-profile actors like Sheldon Cooper, Marilyn Monroe, and Leonardo DiCaprio. The app will ask for a series of pictures of your face to create more realistic deepfakes, but Twitter user Allan Xia says one picture is all it takes.
In case you haven't heard, #ZAO is a Chinese app which completely blew up since Friday. Best application of 'Deepfake'-style AI facial replacement I've ever seen.— Allan Xia (@AllanXia) September 1, 2019
Here's an example of me as DiCaprio (generated in under 8 secs from that one photo in the thumbnail) pic.twitter.com/1RpnJJ3wgT
Momo has since amended its user agreement to state that user-generated content inside the app will no longer be used for other purposes. Furthermore, deleting content in the app will also remove it from the company's servers. That said, China's E-Commerce Research Center asked the authorities to look into the matter, and WeChat has removed all links to the service.
This isn't the first time an app that uses machine learning sparked this much controversy. In July, Russian app FaceApp generated similar concerns over user privacy. The app has a convincing aging filter but its terms stated that by downloading the app, the user silently agrees that the developer can use their in-app data for commercial use without compensation. The company later clarified that it doesn't sell any user data and similarly offered the option to delete it on request.
Most users don't pay attention to the terms and conditions before using such services, even though it's been proven time and again that user agreements can contain clauses that affect privacy. What is even more worrisome is that researchers have found that many apps harvest your data even after you deny permissions.