By Cory Bennett - 03/09/16 09:44 AM EST
An Orlando-based hotel chain is warning its guests that their personal information may have been breached.
Rosen Hotels & Resorts, which operates seven hotels in the Orlando area, said it recently uncovered malicious software on its payment card network.
In a statement, Rosen said it is still trying to identify which customers may have been affected.
“Together with our cyber security firm, we have worked tirelessly to contain and address the incident,” said Frank Santos, the company’s chief financial officer. “Additionally, enhanced security measures have been implemented to help prevent this from happening again.”
Rosen joins a growing list of hotel chains that have been hit by cyber criminals in recent months.
From October to December, four major hotel chains acknowledged network hacks, some of which potentially exposed customers’ sensitive information.
In October, the Trump Hotel Collection, owned by GOP presidential front-runner Donald TrumpDonald TrumpJohnson faces tough crowd at Libertarian debate Sanders: Primary isn't 'rigged,' just 'dumb' Trump University judge to unseal documents MORE, confirmed it had uncovered a data breach at seven of its locations. Customer data was exposed for more than a year, the company said.
In late November, both Hilton Worldwide and Starwood Hotels & Resorts said hackers had infiltrated their payment systems.
Hilton said sensitive information on customers’ credit and debit cards was potentially exposed during a four-month period. But Starwood insisted that no information was stolen from its 54 compromised hotels.
Then, in December, Hyatt Hotels Corporation said malicious software had infiltrated the company’s payment processing system. The company did not say how many of its 627 hotels may have been affected.