The world's largest payroll processor announced yesterday that it has been attacked by cyber criminals, Reuters reports. Advanced Data Processing says the hack targeted one of its corporate clients and it is "taking measures to address the impact," including working with law enforcement. Meanwhile, Citigroup has announced that about 80 percent more of its customers than originally predicted have been affected by the data breach it reported last week. The financial institution is working with Connecticut's attorney general, other state regulators and federal authorities such as the FBI. A medical foundation in California has also announced a breach.
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