"Importantly, at this time, we are confident that the breach has not impacted casino gaming transactions or Affinity Gaming's ATMs," the company said in a statement. "The only transactions potentially affected are hotel, food and beverage, and retail."
Affinity says it's working with third-party IT forensic specialists to investigate the breach, and is cooperating with federal law enforcement and regulators.
In response to the incident, the company says, "We are in the process of confirming the security of the entire Affinity Gaming IT environment and are implementing additional mechanisms to protect this data from external threats."
Customers with questions are advised to contact (877) 238-2179.
In December of 2013, hackers stole the personal information of between 280,000 and 300,000 customers who visited any of a variety of Affinity Gaming locations between March 14, 2013 and October 16, 2013.
It's not clear at this point how many customers may be affected by the more recent breach.
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