INDIA.COM - Mar 17 - The encrypted messaging application, Signal, has mysteriously stopped working in China and the app's website is also inaccessible. Signal users in the country have said that the app is accessible only through the use of a VPN on Tuesday morning. Meanwhile, the app was still available on Apple's China app store, and both the app and its website appeared to be working normally in Hong Kong. Signal was already unavailable on third-party Android stores in China, where Google services are largely blocked. On several occasions, Signal had previously stopped working in China without a VPN for no reason given, only for usage to resume.