Hack of Citigroup Exposes Data on 210,000 Customers

Kara Reeder
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According to PCWorld, Citigroup has confirmed that a data breach on its website last month allowed hackers to access customers' names, account numbers and contact information for about 210,000 of its cardholders in North America. Reuters notes that other information such as birth dates, Social Security numbers, card expiration dates and card security codes were not compromised. The company is not saying how the website, Citi Account Online, was compromised.


Citigroup joins a growing list of high-profile cyber attacks, with the most prominent of late being Sony. An "extremely sophisticated cyber attack" led to the exposure of RSA's SecurID authentication tokens, which ended up leading to an attack of Lockheed Martin and two other defense contractors. And Google revealed that a major spear phishing attack on its Gmail accounts targeted U.S. government officials, Chinese political activists, officials in other Asian countries, military personnel and journalists.

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