China’s internet censorship is well known, but a report has quantified the extent of it, uncovering more than 66,000 rules controlling the content that is available to people using search engines.
The most diligent censor, by at least one measure, is Microsoft’s search engine Bing, the only foreign search engine operating in the country, according to the report, which was released on Wednesday by the Citizen Lab, a cybersecurity research group at the University of Toronto.
The findings suggested that China’s censorship apparatus had become not only more pervasive, but also more subtle.
The search engines, including Bing, have created algorithms to “hard censor” searches deemed to be politically sensitive by providing no results or by limiting the results to selected sources, which are usually government agencies or state news organizations that follow the Communist Party’s line.
“You’re getting results only from certain pre-authorized websites.”