The Walt Disney World Dolphin is among 54 Starwood hotels affected by a data breach over the last year, according to a list released by the hotel company Friday.

Starwood runs Sheraton, Westin and W hotels, along with the Swan and Dolphin hotels on Disney property.

The hotelier said malware was found in payment systems at restaurants, gift shops, bars and other retail areas within hotels, but not at the front desk where guests pay for their stay.

Starwood said the malware exposed names on the cards as well as card numbers, security codes and expiration dates. Contact information and PINs were not exposed, the company said, and its loyalty program wasn't affected.

In Orlando, the Dolphin hotel was subject to the data breach between Nov. 5, 2014 and April 13, 2015. The Swan hotel was not affected.

Most of the other affected Starwood hotels are in the U.S., including a St. Regis in Bal Harbour and the W South Beach in Florida. Also affected were the Sheraton, Westin and W locations in Los Angeles, New York, Boston and several other cities. Two hotels were in Canada and another hotel was in Puerto Rico. 

A full list of the hotels is on the Starwood Hotels website. The list also includes the dates those hotels were affected.

Starwood said the malware has since been removed.

Customers with questions about the data breach can call Starwood at 1-855-270-9179, Monday through Saturday from 8 a.m. to 8 p.m. Central time. If you're an international customer, you can call at 1-512-201-2201.

Starwood is urging anyone who visited the hotels to check their credit report. The company also arranged for All Clear ID to provide protection and credit moitoring services for affected customers for one year. More information is available in the company's FAQs.

The announcement comes on the same week Marriott International Inc. said it planned to buy Starwood Hotels & Resorts Worldwide Inc. for $12.2 billion. The deal, which is expected to be completed in the middle of next year, would create the world's largest hotelier by combining Starwood's 1,275 properties with Marriott's more than 4,300.

Information from the Associated Press was used in this report.