The Sidney Federal Credit Union announced some members in Walton and Oneonta may have become victims of a credit card skimmer that was installed on an ATM at the Walton branch of SFCU. It was discovered over the Labor Day weekend and the credit union says they are contacting affected customers to issue them new debit cards. The Walton and Oneonta branches are opening early today at 8:00 a.m. Officials want to assure members they are diligently investigating this incident.