Payroll processing firm Ceridian Corp. hacked

A hacker recently attacked the payroll processing firm Ceridian Corp. of Bloomington, Minn. and gained access to sensitive information of employees working at 1,900 companies nationwide.

How many victims? 27,000.

What type of personal information? Names, Social Security numbers, and, in some cases, birth dates and bank accounts.

What happened? A hacker attacked Ceridian's internet payroll system on Dec. 22 and 23.

Details: The breach affects less than one-tenth of one percent of the employees for whom Ceridian provides payroll services.

This is the second security breach at Ceridian in three years. In 2007, a former employee stole financial information.

Quote: "We took immediate preventive steps to ensure no further incident of this type would occur," said Keith Peterson, spokesman for Ceridian. "While the total number of employees affected is small, in our minds one is too many, and we are handling this incident according to our established protocol."

What was the response? The breach was reported to the FBI and local authorities. In addition, affected individuals have been notified.

Source: StarTribune.com, Minneapolis Star Tribune, “Hacker attacks Ceridian; data from 27,000 at risk,” Feb. 3, 2010.

Sign up for our newsletters

POLL

More in The Data Breach Blog

Laptop stolen from S.C. medical center contains data on 7k veterans

Laptop stolen from S.C. medical center contains data ...

Last week, hospital officials began notifying patients of the February theft.

Medical records of 2k patients left unprotected on contractor's server

Medical records of 2k patients left unprotected on ...

The records were stored by storage provider working with Glens Falls Hospital in New York.

Doctor's stolen laptop found at pawn shop; data of 652 patients exposed

The psychologist was a private contractor for Washington's Department of Social and Health Services.