Encrypted Messaging App Signal Appears To Be Blocked in China

Encrypted messaging app Signal has stopped working in China and is now only accessible via a virtual private network (VPN). From a report: China blocks many foreign apps and services including those from Facebook and Google. But Signal had previously not been barred by the so-called Great Firewall. Signal claims to be end-to-end encrypted, meaning the company itself nor any outsiders can view the contents of messages between a sender and the intended recipient. This also means authorities cannot snoop on messages. CNBC tested Signal on three different devices and messages did not go through, suggesting it has been blocked by authorities. The app was still available for download via Apple's China App Store.

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