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Lulz Security, the hacker group that has claimed credit for attacks on Sony Corp., Nintendo Co. Ltd. and other companies and law enforcement agencies, said it's had enough.

Sony Corp. may have left itself open to its massive data breach by laying off its security staff just before the attack, a class action alleges.

A former Citigroup Inc. accountant was charged this week with embezzling over $19 million from the New York banking company.