Identities of 27,000 Cerdian users at risk

BLOOMINGTON, Minn. (AP) — A hacker attack on a Bloomington payroll processing company has put 27,000 people at financial risk.

Ceridian, in a letter to affected customers, says the hacker attacked its Internet payroll system Dec. 22 and Dec. 23, potentially revealing Social Security numbers, birth dates and bank accounts of employees working at 1,900 companies nationwide.

Ceridian spokesman Keith Peterson tells the Star Tribune the breach was reported to the FBI, but the affected customers were not notified until this week that their private information could be compromised.

Peterson says the company knows of no financial losses related to the hacker attack. It's the second security breach at Ceridian in three years. In 2007, the theft of financial information involved a former employee.

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