US suspects Chinese military behind hacking
San Francisco, February 19, 2013
A secretive Chinese military unit is believed to be behind a series of hacking attacks, a US computer security company said, prompting a strong denial by China and accusations that it was in fact the victim of US hacking.
The company, Mandiant, identified the People's Liberation Army's Shanghai-based Unit 61398 as the most likely driving force behind the hacking. Mandiant said it believed the unit had carried out "sustained" attacks on a wide range of industries.
"The nature of 'Unit 61398's' work is considered by China to be a state secret; however, we believe it engages in harmful 'Computer Network Operations'," Mandiant said in a report released in the United States on Monday.
"It is time to acknowledge the threat is originating in China, and we wanted to do our part to arm and prepare security professionals to combat that threat effectively," it said.
China's Defence Ministry issued a flat denial of the accusations and called them "unprofessional". It said hacking attacks are a global problem and that China is one of world's biggest victims of cyber assaults.
"The Chinese army has never supported any hacking activity," the Defence Ministry said in a brief faxed statement to Reuters. "Statements about the Chinese army engaging in cyber attacks are unprofessional and not in line with facts."
Unit 61398 is located in Shanghai's Pudong district, China's financial and banking hub, and is staffed by perhaps thousands of people proficient in English as well as computer programming and network operations, Mandiant said in its report.
The unit had stolen "hundreds of terabytes of data from at least 141 organisations across a diverse set of industries beginning as early as 2006", it said.
Most of the victims were located in the US, with smaller numbers in Canada and Britain. The information stolen ranged from details on mergers and acquisitions to the emails of senior employees, the company said.
The 12-storey building, which houses the unit, sits in an unassuming residential area and is surrounded by a wall adorned with military propaganda photos and slogans; outside the gate a sign warns members of the public they are in a restricted military area and should not take pictures.
There were no obvious signs of extra security on Tuesday.
The Chinese Foreign Ministry said the government firmly opposed hacking, adding that it doubted the evidence provided in the U.S. security group's report.
"Hacking attacks are transnational and anonymous. Determining their origins are extremely difficult. We don't know how the evidence in this so-called report can be tenable," spokesman Hong Lei told a daily news briefing.
"Arbitrary criticism based on rudimentary data is irresponsible, unprofessional and not helpful in resolving the issue."
Hong cited a Chinese study which pointed to the United States as being behind hacking in China. "Of the above mentioned Internet hacking attacks, attacks originating from the United States rank first."
"ECONOMIC CYBER ESPIONAGE"
Some experts said they doubted Chinese government denials.
"The PLA plays a key role in China's multi-faceted security strategy, so it makes sense that its resources would be used to facilitate economic cyber espionage that helps the Chinese economy," said Dmitri Alperovitch, chief technology officer and co-founder of CrowdStrike, one of Mandiant's competitors.
Though privately held and little known to the general public, Mandiant is one of a handful of US cyber-security companies that specialise in attempting to detect, prevent and trace the most advanced hacking attacks, instead of the garden-variety viruses and criminal intrusions that befoul corporate networks on a daily basis.
But Mandiant does not promote its analysis in public and only rarely issues topical papers about changes in techniques or behaviours.
It has never before given the apparent proper names of suspected hackers or directly tied them to a military branch of the Chinese government, giving the new report special resonance.
The company published details of the attack programmes and dummy websites used to infiltrate US companies, typically via deceptive emails.
US officials have complained in the past to China about sanctioned trade-secret theft, but have had a limited public record to point to. - Reuters
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