Encrypted messaging app Signal no longer working in China

Encrypted messaging app Signal appeared to no longer be working in China without the use of a virtual private network (VPN) as of Tuesday morning (local time), users in the country said.

China has deployed a vast and sophisticated system to scrub the internet of dissent and prevent citizens from accessing international social networking platforms such as Facebook and Twitter, in what is known as the “Great Firewall”.

Signal’s website has been banned since at least March 15, according to the…