A cyberattack targeting credit and debit card users at local grocery stores in parts of Washington, Oregon, Idaho and Montana has been blocked. 

URM Stores says credit card systems were placed back online Monday night after extra security systems were implemented.

URM Stores is a Spokane-based wholesaler that processes a large number of the electronic payments made by shoppers at Yoke's, Rosauers, Super 1 Foods, Family Foods, CenterPlace Market and Trading Company stores in the four states.

The extra security won't protect customers who used their cards at the stores prior to Nov. 25. Officials stress that anyone who used a credit or debit card at URM-affiliated stores prior to that date should pay close attention to bank statements.