PHOENIX -- An Arizona-based supermarket chain says it's been victimized by a cyber attack on the stores' online systems, which provided criminals with access to customer payment information.
Bashas' officials say they recently located and removed a highly-sophisticated piece of malware from its systems.
They say victims have been limited to Lake Havasu City and Pinal County. However, the Pinal County Sheriff's Office said there were victims in multiple states and in at least four other countries. All customers are being warned to check their credit card and debit card transactions.
Forensic specialists and federal law enforcement officials have begun an investigation into the cyber attack to find those responsible. The Federal Bureau of Investigation has been notified.
"All Pinal County citizens who have reported the frauds have had their bank accounts reimbursed," said Pinal County Sheriff Paul Babeu in a release. "Numerous investigators from various law enforcement agencies are working around the clock to find those responsible and put them behind bars."
Bashas' officials say they've installed additional security measures to protect customers' personal information from attacks in the future.
The company operates Bashas' supermarkets, AJ's Fine Foods and Food City.
The KTAR Newsroom contributed to this report.