Every day, PSCU's technology and risk management team works to successfully detect and prevent credit card fraud.

But recently, that technology and team also caught one of its own employees, Reynaldo Colon, a former PSCU credit card fraud investigator. He was arrested Monday for stealing customers' credit card account numbers to pay for fast food meals.

After the fraud was detected and reported to police by the St. Petersburg, Fla.-based CUSO, an investigation found that Colon, 26, of Apolo Beach, Fla., allegedly stole 21 credit card accounts and used them to make about 100 fraudulent transactions, mostly at fast food restaurants, Rick Shaw, a spokesperson for the St. Petersburg Police Department, said.