Chinese journalist Shi Tao was found guilty of 'divulging state secrets' after forwarding a government email to the foreign press.
Marked 'top secret', the email warned journalists of the risks posed by the return of dissidents on the 15th anniversary of the Tiananmen Square massacre.
Mr Tao, a former journalist on the Dangdai Shang Bao (Contemporary Business News) was sentenced on 30 April. An English translation of the trial verdict, made by San Fransisco-based human rights group the Dui Hua Foundation, showed that information provided by Yahoo! allowed the authorities to link Mr Tao's email account with the IP address used to forward the 'top secret' email.
"It is one thing to turn a blind eye to the Chinese government's abuses and it is quite another thing to collaborate," said a spokesperson for RSF.
"Does the fact that this corporation operates under Chinese law free it from all ethical considerations? How far will it go to please Beijing?"
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