Investigators say they've traced an international ATM fraud scheme to the Sacramento area. The scam involves "skimmers" or devices placed over the front of the opening of an ATM in order to steal financial information.

One Sacramento resident told News10 he was a victim. The man, who wanted to be identified only as "Lloyd," said he noticed $600 in withdrawals from his Wells Fargo account he didn't make. Some of the transactions occurred as far away as Estonia, in eastern Europe.

Customers from Bank of America have also been affected, according to investigators, and more than 1,000 thousand local debit card holders with Golden One Credit Union have had their cards frozen, after possible fraud involving hijacked card numbers.

Investigators say there is an international black market for ATM information. "They take your information, put it on a new card, and they're golden," said Lt. Bob Lozito with the Sacramento Valley Hi-Tech Crime Task Force. "They can take that information and have as much fun as you've got money."

Under the law, banks must reimburse customers for money withdrawn fraudulently.

Police say skimmers on ATMs may be a different color than the machine or it may look like a box, requiring customers to swipe their cards instead of inserting them. A customer swipes his card and then a hidden camera typically records him inputting his personal identification number.

For advice from the Sacramento Valley Hi-Tech Crimes Unit on protecting your personal information, click on the link above.