SAN FRANCISCO — Hyatt Hotels Corp. says it found malicious software on the computer system that processes customer payments, raising the possibility that hackers may have obtained credit card numbers or other sensitive information.

The resort chain is advising customers to review their payment card statements, although it has not said if any customer data was stolen. Hyatt spokeswoman Stephanie Sheppard said that the malware was discovered Nov. 30, but she didn’t say why the company waited three weeks to report it.

Hyatt is the latest of several major hotel chains to report this year that hackers had attacked their computers. The Hilton, Starwood, Mandarin Oriental and Trump Collection chains have previously acknowledged finding malware in their payment systems. Starwood acknowledged last month that the malware enabled “unauthorized parties to access payment card data” for some of its customers.

Hyatt also said it has hired outside experts to help investigate the malware, and has taken steps to increase security on its computer systems.