thompson, abc7 news. now for more top stories, we go to terry mcsweeney in san francisco. >> reporter: good morning.an i store, one of 24 bay area lucky -- stores where customers are getting this warning in the self-checkout lanes it says if you have used the self-checkout lane you might want to call your bank and cancel your account. take a look, little details on this notice. it says the lanes have been compromised by what investigators are saying, a data skimming device. crooks are using these things to swipe machines at the self-checkout stands after inserting the skimming devices the thieves retrieve the information from your card electronically, they don't have to return to the store. 500 customers impacted so far what is really scary is this, take a look at what may be a related case, credit and debit card information in ukiah compromised hundreds have had data stolen. numerous fraudulent charges have been discovered within bank has cancelled more than 1,000 -- one bank has cancelled more than 1,000 cards. for a complete list go to abc7news.com click on see it on tv, terry mcsweeney, abc7 new