Hyatt Hotels has become the latest hotel company to discover malware in its payment systems.
The company said it made the discovery in November, though it alerted the public only on December 23.
Reports suggest that 318 hotels have been affected, almost half of Hyatt's 627 hotels.
Hyatt has not provided a list of which hotels have been affected, or when they were affected, or why it has taken weeks since the discovery to notify the public, but it has set up a webpage in three languages (English, German and Chinese) with numbers for concerned guests to call.
On that webpage Hyatt says,
"We recently identified malware on computers that operate the payment processing systems for Hyatt-managed locations. As soon as we discovered the activity, we launched an investigation and engaged leading third-party cyber security experts.
"The investigation is ongoing, and updates will be posted here at www.hyatt.com/protectingourcustomers.
"We have taken steps to strengthen the security of our systems, and customers can feel confident using payment cards at Hyatt hotels worldwide."
Other hotel companies which have suffered similar problems include Starwood see news, November 2015), Mandarin Oriental (see news, September 2015) and Hilton (see news, November 2015).
hyatt.com
