Data breaches have affected several major U.S. corporations recently, Target Corp., Michaels Stores Inc., Sally Beauty Holding Inc. and Neiman Marcus to name a few. PF Chang’s China Bistro Inc. can now be added to the list. The restaurant chain, based in Scottsdale, Arizona, has provided a list of 33 locations where credit and debit cards used may have had information stolen. The potentially stolen data includes the card number and possibly the cardholders name and/or the card’s expiration date.

Mark Dryer, CEO of MDL Technology, an IT and managed services firm in Kansas City, said that companies need to make sure they are maintaining and updating their security policies frequently. “Policies need to be reviewed on a regular basis. The exact time frame depends on what kind of IT infrastructure is in place, the expertise level of in-house and external consultants, the pace of changes in network, server platforms, applications configuration and implementation of new technologies and whether the business can bear the cost of revision process,” he said.

Find more information and a complete list of locations affected today.