Scammers have been mailing fake Pima Federal Credit Unioncashier's checks across the nation to unsuspecting consumers whowere selling products or applying for secret shopper jobs onCraigslist.

No one knows just how many consumers have been duped, but atleast $117,000 of the fake cashier's checks were cashed. However,the $466 million Pima said it mitigated more than $100,000 of the bogus checks,according to Laura Ward, vice president of risk management for theTucson, Ariz.-based cooperative.

“We're probably getting five to 10 (fake checks) a day and itseems to be picking up momentum,” Ward said. “We're trying to getthe word out because we are trying to mitigate the number ofvictims.”