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Google says hackers in China stole Gmail passwords

Google says hackers in China stole Gmail passwords

By John Markoff and David Barboza, The New York Times | Updated: 5 June 2012 02:06 IST

Highlights

Google said Wednesday that hundreds of users of Gmail, its e-mail service, had been the targets of clandestine attacks apparently originating in China that were aimed at stealing their passwords and monitoring their e-mail.

Google said Wednesday that hundreds of users of Gmail, its e-mail service, had been the targets of clandestine attacks apparently originating in China that were aimed at stealing their passwords and monitoring their e-mail.

In a blog post, the company said the victims included senior government officials in the United States, Chinese political activists, officials in several Asian countries, military personnel and journalists.

It is the second time Google has pointed to an area of China as the source of an Internet intrusion. Its latest announcement is likely to further ratchet up the tension between the company and Chinese authorities.

Last year, Google said it had traced a sophisticated invasion of its computer systems to people based in China. The accusation led to a rupture of the company's relationship with China and a decision by Google not to cooperate with China's censorship demands. As a result, Google decided to base its Chinese search engine in Hong Kong.

The more recent attacks were not as technically advanced, relying on a common technique known as phishing to trick users into handing over their passwords. But Google's announcement was unusual in that it put a spotlight on the scale, apparent origins and carefully selected targets of a coordinated campaign to hijack e-mail accounts.

Google said that once the intruders had logged into the accounts, they could change settings for mail forwarding so that copies of messages would be sent to another address. The company said it had "disrupted" the campaign and had notified the victims as well as government agencies. Executives at Google declined to comment beyond the blog post. The company recommended that Gmail users take additional security steps, like using a Google service known as two-step verification, to make it more difficult to compromise their e-mail accounts. But it emphasized that the password thefts were not the result of a general security problem with Gmail.

Google acknowledged that it had been alerted to the problem in part by Mila Parkour, a security researcher in Washington who posted evidence of a type of phishing attack on her blog in February. She documented examples of what has recently been described as a "man-in-the-mailbox" attack, in which the intruder uses the account of one victim and his e-mail contacts to gain the trust of a new victim.

Ms. Parkour wrote that the method used in this attack "is far from being new or sophisticated," but that she was posting information about it because of "the particularly invasive approach of the attack."

She highlighted a fake document titled "Draft US-China Joint Statement" that was circulated among people with e-mail accounts at the State Department, the Defense Department, the Defense Intelligence Agency and Gmail. Clicking to download the document directed users instead to a fake Gmail log-in page that captured their passwords.

Caitlin Hayden, a spokeswoman for the National Security Council, said the White House was looking into the matter.

"We have no reason to believe that any official U.S. government e-mail accounts were accessed," Ms. Hayden said in an e-mail.

Google said the attacks apparently originated in Jinan, a provincial capital in eastern China. The city is a regional command center for the Chinese military, one of seven in the country. It is also home to the Lanxiang Vocational School, which was founded with military support. Last year, investigators looking into the attack on Google's systems said they had traced some of the hacking activity back to the school.

At the time, government and school officials strongly denied any connection with the attack, and China's foreign ministry said linking the Chinese authorities to such attacks was "baseless, highly irresponsible and hype with ulterior motives."

That earlier attack appeared to be aimed at gathering information on human rights activists who were involved in political campaigns aimed at China. It was part of a wave of attacks that hit a range of American companies beginning in mid-2009 and that was first publicly disclosed by Google in January 2010.

Chinese government media officials were not immediately available to comment on Google's latest announcement.

Rafal Rohozinski, a network security specialist at the SecDev Group in Ottawa, said it was impossible to lay blame for the campaign on the Chinese government with any certainty. Because of the borderless nature of the Internet, it is easy for intruders to connect through a series of countries to mask their identities. "The fact that someone is harvesting Gmail credentials is not surprising," Mr. Rohozinski said.

This year, the Chinese government has stepped up its controls over the Internet within the country, with increased scrutiny of news and blog sites, particularly in the wake of political upheaval in North Africa and the Middle East.

The government has also apparently crippled some virtual private network services, or VPNs, which have been used by Chinese and expatriates to gain access to corporate e-mail or get around controls that block many Web sites from being entered in China, like YouTube, Facebook and Twitter.

Security specialists said the Google warning to users was an indication that efforts to place the responsibility for Internet security on individuals was failing.

"I think this is impossible to solve by going to one user at a time and trying to teach them how to behave on the Internet," said Nir Zuck, founder and chief technology officer of Palo Alto Networks. "It doesn't matter how much education you put into it -- you will always have end users that will make a mistake."

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