SPOKANE, Wash. (AP) — Owners of several grocery store chains are telling customers to consider paying by cash or checks while investigators try to secure a computer network that was hacked over the past two months. The breach may have impacted customers in parts of Idaho, Oregon, Montana and Washington.

The Spokesman-Review reported Monday the stores include all 12 Yoke's Fresh Markets and 21 Rosauers stores in the Spokane area.

URM Stores is a Spokane-based wholesaler that processes a large share of the electronic payments made by shoppers at Yoke's, Rosauers, Super 1 Foods, Family Foods, CenterPlace Market, and Trading Co. Stores. It suggested the cash or check option while it investigates a data breach that resulted in fraudulent charges showing up on shoppers' debit and credit cards.