Amazon.com Inc. (AMZN)’s Web Services cloud- computing unit was used by hackers in last month’s attack against Sony Corp. (6758)’s online entertainment systems, according to a person with knowledge of the matter.
Hackers using an alias signed up to rent a server through Amazon’s EC2 service and launched the attack from there, said the person, who requested anonymity because the information is confidential. The account has been shut down, the person said.
The development sheds light on how hackers used the so- called cloud to carry out the second-biggest online theft of personal information to date. The incursion, which compromised the personal accounts of more than 100 million Sony customers, was “a very carefully planned, very professional, highly sophisticated criminal cyber attack,” Sony has said.
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The hackers didn’t break into the Amazon servers, the person said. Rather, they signed up for the service just as a legitimate company would, using fake information.
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Amazon fell $3.51, or 1.7 percent, to $202.56 yesterday in Nasdaq Stock Market trading. The shares have added 13 percent this year. Sony lost 23 yen to 2,241 yen in Tokyo and have slid 23 percent in 2011.
Sony offered customers a free year of identify-theft protection after its PlayStation Network and Qriocity entertainment networks were crippled by the attack.
Thieves may have stolen credit-card, debit records and other personal information from customers of Sony Online Entertainment, a third service. The New York Attorney General’s office has subpoenaed Sony, according to a person familiar with the probe.
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