In January 2010, Google tied hackers in the same city to a more sophisticated and wide-ranging assault on its computer systems. The company has not suggested that the Chinese government was behind those attacks, though speculation to that effect has been widespread, particularly since the company’s services have been plagued with unexplained disruptions.

In the days after Google’s latest accusation, Chinese users of Gmail and the popular Google Maps service have seen connections slow to a crawl, while the same services used through private networks have remained trouble-free.

Chinese officials have attributed Google’s service problems to technical issues that do not involve the government, and they have denied any government role in hacking Google computers or e-mail accounts. On Thursday, a Foreign Ministry spokesperson called hacking a criminal activity and said that China also suffered attacks by hackers.

Google has lost significant share of the market over the last few years, as it suffered both hacking attacks and government censorship of its Web searches. The company moved its search operations last year to uncensored servers in Hong Kong.

After commanding more than a third of China’s market for online searches in 2009, Google saw its share decline by the first three months of 2011 to 19.2 percent, a 2 percent drop from the last quarter of 2010, according to the Chinese research firm Analysys International.

    

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编 辑：张丽    联系电话：010-67114335