Yahoo!, along with Google China, Microsoft, Cisco Systems, AOL, Skype, Nortel and others, has cooperated with the Chinese government in implementing a system of internet censorship in mainland China.
Unlike Google or Microsoft, which keep confidential records of its users outside mainland China, Yahoo! stated that the company will not protect the privacy and confidentiality of its Chinese customers from the authorities.
Human rights advocates such as Human Rights Watch and media groups such as Reporters Without Borders state that it is "ironic that companies whose existence depends on freedom of information and expression have taken on the role of censor