COLUMBIA — Columbia’s Schnucks is on the list of 79 of the grocery chain’s 100 stores that might have been affected by a three-month period of credit and debit card fraud.
According to the list Schnucks Markets Inc. released, Columbia residents who shop at Schnucks may have been at risk if they used their cards between Dec. 10 and March 29.
As many as 2.4 million cards might have been compromised, according to a news release on Monday. Only card numbers and expiration dates were obtained. No names or addresses were taken.
According to a timeline on the company’s website, the store was notified March 15 that 12 cards experienced fraud after being used at a Schnucks store.
Schnucks worked with Mandiant, a forensic firm that found evidence of a computer code that could capture the magnetic strip data on the back of cards. Mandiant and Schnucks information technology employees launched a containment plan March 30, according to an earlier news release.
The company said that containment measures were successful and that it is safe for customers to use their cards at all Schnucks stores now.
Chairman and CEO Scott Schnuck said in a personal video that the company is working with its card processor to provide credit card companies with all of the numbers that might have been targeted, so banks can be alerted.