WeChat prevents its users from accessing a popular face-swapping app named Zao after its privacy policy issue surfaced. Zao’s privacy regulations state that it will gain possession of any content generated from the app. WeChat users can still upload and send videos created from Zao. However, they will see an error message that prohibits them from accessing Zao if they try to download the app.

Zao became the leading iOS app in China after its release on August 30. It allows the users to replace celebrities’ faces with their own selfies as if they are the ones in the famous shows or movie scenes. Zao’s developers released a statement on September 1 to acknowledge the privacy issue concerning the app. The terms and conditions are now changed, stating that Zao’s servers will remove all deleted content from the app.