A major Internet outage in China on Tuesday that rerouted users to the U.S. website of a company which helps people get around Beijings censorship may have been due to a hacking attack, the official Xinhua news service reported. The state-run China Internet Network Information Center (CNNIC) said in a microblog post that the outage, which lasted for several hours, was due to a malfunction in Chinas top-level domain name root servers on Tuesday afternoon. Chinese Internet users were rerouted to a U.S.-based website run by Dynamic Internet Technology, a company that sells anti-censorship web services tailored for Chinese users, including a product that enables the retrieval of microblog posts deleted by Chinese censors. Dynamic Internet Technology did not immediately respond to requests for comment.