EDEN PRAIRIE — The grocery chain Supervalu said Friday that it may have suffered a data breach at stores in as many as five states.

Hackers accessed a network that processes store transactions. Account numbers, expiration dates, cardholders’ names and other information may have been stolen, the company said.

Grocery stores — as well as some stand-alone liquor shops — in Minnesota, Virginia, Illinois, Maryland and Missouri may have been affected between June 22 and July 17.

The cards from which data may have been stolen were used at 180 Supervalu stores and liquor stores run under the Cub Foods, Farm Fresh, Hornbacher’s, Shop ‘n Save and Shoppers Food & Pharmacy names. Data may also have been stolen from 29 franchised Cub Foods stores and liquor stores.

—Associated Press