The Better Business Bureau of Western Michigan advises P.F. Chang's customers to check their credit card and bank statements for any charges they did not make.
The news comes after the food chain confirmed Friday that hackers reportedly stole customers' credit and debit card information from some of the company's locations.
P.F. Chang's has restaurants, in Grand Rapids, Lansing, Clinton Township, Dearborn, Northville Township, and Troy, Mich according to Mlive.com.
According to a press release statement from CEO Rick Federico, the company has therefore "moved to a manual credit card imprinting system for all P.F. Chang's China Bistro branded restaurants located in the continental United States. This ensures our guests can still use their credit and debit cards safely in our restaurants as our investigation continues," Federico said. "At P.F. Chang's, the safety and security of our guests' payment information is a top priority."
Federico hopes officials find details behind how and why the breach occurred.
"We initiated an investigation with the United States Secret Service and a team of third-party forensics experts to understand the nature and scope of the incident, and while the investigation is still ongoing, we have concluded that data has been compromised," the executive said.
The top official said the company is also handling the security breach cautiously.
"Because we are in the preliminary states of our investigation, we encourage our guests to be vigilant about checking their credit card and bank statements," Federico said. "Any suspected fraudulent activity should be immediately reported to their card company. We sincerely regret the inconvenience and concern this may cause for our guests."
Concerned customers can stay informed about developments in the case via P.F. Chang's security website here.
Target is recovering from its own data breach, after 40 million credit and debit account numbers were seized between Nov. 27 and Dec. 15, 2013, Krebs on Security reported.