PhotoIf you stayed in a Hyatt Hotels property and paid with a credit or debit card, your card may have been compromised.

The hotel chain says it has found malware on computers that operate the payment processing systems for Hyatt-managed locations.

“As soon as Hyatt discovered the activity, the company launched an investigation and engaged leading third-party cyber security experts,” Hyatt said in a statement. “The investigation is ongoing, and updates will be posted to”

Besides announcing the breach, Hyatt has released almost no other information. The special website contains little more information than what was provided to the media.

Unanswered questions

For example, when the breach took place and how long the malware was in place is a key, but missing, piece of information. If you stayed at a Hyatt property in January, should you assume your credit card has been compromised. As yet, Hyatt has not provided that information.

The company only says it has taken steps to strengthen the security of its systems, and that “customers can feel confident using payment cards at Hyatt hotels worldwide.”

Until Hyatt can provide dates that the malware was in place, consumers who stayed at a Hyatt property at any time should probably assume their credit card information could be in the hands of criminals.

Hyatt has set up a special telephone number for customers who have questions. That number is -877-218-3036 for the U.S. and Canada or +1-814-201-3665 internationally. The phone will be answered from 7 a.m. to 9 p.m. EST.

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