Following an enjoyable evening ringing in 2013 at Club Soda, a popular restaurant in Fort Wayne, Indiana, Rick Partin could not have expected the concerning call he received from his credit card company not long after the New Year’s Eve celebration had wrapped up.

“I got a phone call Monday from Citi Card Visa asking me if I had made a charge on my card at a Pilot gas station in Georgia for $650,” Partin told local news outlet WANE. “I said, ‘No, I wasn’t in Georgia. That wasn’t me.’ It turns out later in the day I got some information from my brother-in-law and my sister-in-law that were with us that night and they also had their credit card information stolen.”

Since then, it’s become clear that Partin and his family members were not the only victims – about 35 people, including more than five Club Soda employees, have come forward to say that their credit card information had been stolen, with all unauthorized charges occurring around January 4. Owner Don Ulmer has said that an overseas hacker group targeted his restaurant. He is currently in the process of installing a new credit card processing system.

It’s unclear what sort of encryption practices Club Soda used before sending off customers’ credit card information.

Stopping fraudulent activity with a proactive approach

The incident highlights the wide scope of a point of sale system breach, as customers, the restaurant and credit card companies have been forced to take steps to rectify the incident. Business owners need to be especially proactive in preventing credit card fraud, which they can do by installing POS credit card processing software that allows them to identify potentially fraudulent transactions before more people become victims.