The Associated Press has an item about Radisson Hotels & Resorts notifying guests of a breach that involved their credit card numbers. And I see that on Radisson’s site, they have posted a letter to guests:
Radisson values your business and respects the privacy of your information, which is why we wish to inform you that between November 2008 and May 2009, the computer systems of some Radisson® hotels in the U.S. and Canada were accessed without authorization. This unauthorized access was in violation of both civil and criminal laws. Radisson has been coordinating with federal law enforcement to assist in the investigation of this incident. While the number of potentially affected hotels involved in this incident is limited, the data accessed may have included guest information such as the name printed on a guest’s credit card or debit card, a credit or debit card number, and/or a card expiration date.
They have also posted an FAQ on the incident. The FAQ indicates that they have not yet determined the full scope of the breach in terms of which hotels and which guests are affected, and that they learned of the breach through the credit card companies:
Original Source: http://www.databreaches.net/?p=6754
How did Radisson learn about the unauthorized access [hacking/security breach]?
We became aware of the unauthorized access through information provided by payment card companies (Visa, MasterCard, etc), and our payment card processors.