The California Bureau of Automotive Repair recently began notifying several California smog check station owners that their bank account numbers and bank routing numbers may have been accessed by an unauthorized individual.

According to a notification letter [PDF file] sent on July 3, the network of one of the bureau's service providers was accessed between May 2012 and March 2013, potentially exposing licensed smog check stations' banking data.

Smog check station owners are being advised to monitor their bank accounts for suspicious activity, or to close their accounts and ask that they be reported as "closed at customer request."

"We regret that this incident occurred and want to assure you we are working with the service provider to ensure additional controls and safeguards are implemented to minimize the risk of recurrence," Bureau of Automotive Repair chief John Wallauch wrote in the notification letter.

Smog check station owners with questions are advised to contact the Consumer Information Center at (800) 952-5210.