Apple event reveals iPad Pro 2021 Apple AirTags iMac gets bright colors, first redesign since 2012 Venmo OKs cryptocurrencies Child tax credit's monthly check

Chinese government blocks WhatsApp chat service

Facebook might have to lower its billion-user tally now that its encrypted text-messaging service is reportedly no longer available in China.

20170925-whtasapp-01

More than a billion people use Facebook's WhatsApp messaging service -- or at least they did.

Stephen Shankland/CNET

Chinese authorities have apparently squelched another service -- Facebook's WhatsApp text-messaging service.

The popular app -- more than a billion people use WhatsApp, at least until the China ban -- opens up an encrypted communication channel between two people. That encryption protects your privacy but also makes life hard for law enforcement, spies, and other forms of government snooping.

China started blocking the service Wednesday but fully blocked it Monday, according to researcher Nadim Kobeissi‏ of Symbolic Software, which monitors such services' availability. It appears China is blocking the encrypted communications specifically, he told The New York Times.

Plenty of other services have been blocked in China, including Google search and Facebook's social network.

WhatsApp declined to comment. Kobeissi and the Chinese government didn't immediately respond to a request for comment.

The Smartest Stuff: Innovators are thinking up new ways to make you, and the things around you, smarter.

iHate: CNET looks at how intolerance is taking over the internet.