I too received a letter addressing the Data Security Incident. I called the Wyndham reservations line and talked to a representative. She said the letter was a legitimate letter and told me to call the phone number provide in letter for further details. Then she offer me a three day free stay at a Wyndham resort, I declined.

Suggest anybody questioning the legitimacy of their letter call Wyndham using the phone numbers at their website to check it out. These days, you should never call the number on a letter until you have checked out the validity of the claim stated.