Customers who used credit cards at Neiman Marcus during the holidays could be at risk for fraudulent charges. The Dallas-based luxury retailer revealed a cyber hack of customer data occurred in mid-December.
Neiman Marcus was unable to confirm the suspected fraud until Jan. 1, officials said. The store is now in the process of notifying customers whose cards have been been compromised.
Neiman Marcus is working with federal agencies and U.S. Secret Service to investigate the breach.
"We have begun to contain the intrusion and have taken significant steps to further enhance information security," Ginger Reeder, vice president of corporate communications, said in a statement.
Neiman Marcus first heard inklings of a cyber attack from its merchant processor. It then took several weeks for the data breach to be confirmed.
Reeder said Neiman Marcus is working with federal agencies, U.S. Secret Service, and leading forensic and intelligence firms to investigate the breach, which is believed to have occurred at Neiman Marcus Group stores across the country.
The news of an attack at Neiman's follows a much bigger hack during the same time period at Target, where around 110 million customer credit cards were compromised. Neiman Marcus did not directly respond to a request for information on how many customers have been impacted by the breach, though the Wall Street Journal reports it was less than 1 million.