After an ongoing investigation, FireKeepers Casino Hotel announced it confirmed unauthorized access into its computer systems, leading to the potential compromise of approximately 85,000 customer credit and debit cards.
In a statement published on its website, the Michigan-based casino said data security experts determined the payment transactions for food, beverage and retail purchases made between September 7, 2014 and April 25, 2015 may have been affected by the incident.
The compromised information potentially included card numbers, cardholder names, verification codes, and/or expiration dates, said the casino.
In addition, the company stated a file storage server, which contained personal information for certain customers, employees and their dependents, was also affected.
“Although we have no evidence that any of the information located on the file server has been misused, we are letting our employees and customers know about this event as a precaution,” said FireKeepers.
The company noted that cards used for hotel reservations, cash advances and ATM transactions were not affected by the breach, as they are processed through separate payment systems.
The gambling and entertainment venue assured the security incident has since been contained and that its systems are now operating securely.
The announcement comes after FireKeepers stated it had become aware of a possible security incident back in May, in which it immediately engaged independent IT forensic experts to assist with the investigation.
For those who may have been impacted, FireKeepers has provided free credit monitoring and identity protection services for up to one year.
“We take the privacy and security of your information very seriously, and sincerely apologize for any concern or inconvenience this may cause,” the company said.
“We have undertaken an aggressive response to investigate and resolve this incident, enhance our data security, and support our customers and employees.”