Marriott announced Friday that hackers stole data from as many as 500 million guests who made reservations at Marriott's Starwood properties. The hack, which began in 2014, compromised information including combinations of name, mailing address, phone number, email address, passport number, Starwood Preferred Guest account information, date of birth, gender, arrival and departure information, reservation date, and communication preferences. If you made a reservation on or before September 10, 2018, at a Starwood property, information you provided may have been involved. To enroll in WebWatcher and get additional information about the breach, visit the incident response website, email, or call (877) 273-9481.