Credit unions in the Upper Midwest and Middle South might wantto monitor their debit and credit card accounts more closely aftera company that supplies vending machines to entertainment venuesreported a card data breach.

Vacationland Vendors in Wisconsin Dells, Wis., supplies vendingmachines and games to businesses nationwide, including theWilderness Resorts in Wisconsin and Tennessee.

The company has released a public statement that an“unauthorized person wrongfully accessed certain parts of the pointof sales systems that Vacationland Vendors uses to process creditand debit transactions at the Wilderness Resorts.”

Based upon its investigation to date, Vacationland Vendorsreasonably believes that a computer hacker improperly acquiredcredit card and debit information, the company said.

“This incident did not involve an internal security issue withinthe Wilderness Resort. Vacationland Vendors has learned that otherbusinesses just like its own have been affected by this computerhacker,” the company added.

The company has estimated that data from as many as 40,000 cardswere compromised between Dec. 12, 2008 and May 25, 2011.