BREACH: Supervalu hit with second data breach, including four metro Cub Foods stores via OSINT-X Newswires

Supervalu said Monday that it was the victim of yet another customer payment card data breach -- this one affecting four Twin Cities Cub Foods stores.

The Eden Prairie-based grocery chain said the breach likely began in late August and ended Sept. 21. This is the second such breach the company has suffered in recent months, and the first was much broader.

The four affected Twin Cities stores are in Hastings, Shakopee, Roseville (Har Mar) and White Bear Lake. Supervalu said credit and debit card information may have been stolen, including card numbers, expiration dates and cardholders' names. The company did not say how many accounts may have been affected.

Supervalu is among several retailers to be victimized by cyberthieves in the past year. High-profile payment card data breaches at Target, Home Depot, Dairy Queen and others have left tens of millions of consumers vulnerable to financial theft. Stolen card numbers have been found for sale en masse on clandestine websites, presumably posted by the thieves.

Supervalu has never said how many accounts may have been compromised at its stores.

The grocery company was in the process of installing "enhanced protective technology" on its point-of-sale terminals when hackers installed malicious software on the network that processes transactions for the company's Shop 'n Save, Shoppers Food & Pharmacy and Cub Foods stores, according to Supervalu's news release.

These security measures are designed to prevent malware uploaded to the company's network from collecting any payment card data.