Google, et al.
Google, et al.
Date: December 2009
Affected: 21 companies
In what remains one of the most sophisticated hacks on record, Google reported that it, along with at least 20 other companies, were the target of a cyber attack originating fromChina. While one of the goals appeared to be the access of Gmail accounts of Chinese human rights activists, Google says the biggest loss was unspecified intellectual property. The culprit? A weakness in an old version of Internet Explorer used to gain access to Google's infrastructure.

JP Mangalindan, writer @FortuneMagazine - Last updated June 08 2012: 3:14 PM ET
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