China has tightened its rules on internet usage to enforce a previous requirement that users fully identify themselves to service providers.

The move is part of a package of measures which state-run Xinhua news agency said would protect personal information.

But critics believe the government is trying to limit freedom of speech.
The announcement will be seen as evidence China's new leadership is targeting the internet as a threat.
In recent months, the internet and social media have been used to orchestrate mass protests and a number of corrupt Communist Party officials have been exposed by individuals posting criticisms on the internet.
Under the new measures, anyone signing agreements to access the internet, fixed-line telephone and mobile devices will be required by network service providers to give "genuine identification information", the decision says, according to Xinhua.
Hundreds of millions of people use the internet in China, with many using micro-blogging sites to complain or campaign on issues of national interest, including government corruption.
The Chinese authorities closely monitor internet content that crosses its borders and regularly block sensitive stories through use of what is known as the Great Firewall of China.

BBC.