Courtesy: Trump SoHo New York

Courtesy: Trump SoHo New York

If you’ve stayed at a Hilton or Trump hotel in the last 18 months, you may want to take a closer look at your credit card statements.

According to Krebs on Security, a pattern of credit card fraud has led banking industry sources to believe that hackers breached point-of-sale registers in gift shops and restaurants at an undisclosed number of U.S. Hilton properties between this past April 27 and July 27.

Embassy Suites, DoubleTree, Hampton Inn and Suites, and Waldorf Astoria properties may be among those affected. The hotel brand says that it is investigating the matter, though it does not appear that the guest reservations system was hit by the breach.

The Trump Hotel Collection is dealing with its own hack, too. According to CBS New York, the hotel chain’s payment data system was breached. The company found malware that could potentially give hackers access to guests’ payment information — including account numbers, expiration dates, and security codes. The breach took place between May 19, 2014 and June 2, 2015 at seven hotels, including Trump SoHo New York and Trump International.

The chain recommends checking your past credit and debit card statements for unusual activity, closely monitor future transactions and statements, check credit reports, and contact local police if you find unusual activity. It’s offering a year of free fraud resolution and identity protection services to customers who paid using credit or debit cards during those dates.