(Hamilton)--Butler County Auditor Roger Reynolds hosted a credit card skimmer summit last week to educate gas station owners and other retailers about the growing problem. Skimmers are placed on gas pumps and ATM machines by scam artists looking to steal credit card information. Montgomery County Auditor Karl Keith told the crowd Ohio has been hit hard by the skimmers over the past six months.Keith says gas station owners are becoming more aware of the problem, making daily inspections of their gas pumps.