BALTIMORE (WJZ)—An investigation into a malware attack that hit hundreds of Hyatt Hotels is now complete, according to a report posted on the company’s website.
In the report, nearly 100 hotels in the United States, including three locations in Maryland, were among those affected by the breach.
The investigation identified signs of unauthorized access to payment card data from cards used onsite at certain Hyatt-managed locations, primarily at restaurants, between August 13, 2015 and December 8, 2015.
The company also says that a small percentage of the at-risk cards were used at spas, golf shops, parking, and a limited number of front desks, or provided to a sales office during this time period.
The malware was designed to collect payment card data: cardholder name, card number, expiration date and internal verification codes from cards used onsite as the data was being routed through affected payment processing systems.