The passport numbers, paired with arrival, departure and reservation date information, could allow nations to track the movements of key government and business executives.
Original Story: Massive data breach reported at Marriott's Starwood hotels; 500 million guests affected What does this mean for you?
Guests' names, phone numbers, email addresses, passport information and credit card numbers and expiration dates may have been taken.
The two Michigan hotels included in this breach are The Westin Book Cadillac Detroit hotel and the The Westin Detroit Metropolitan Airport hotel.
The hotel chain is offering some level of credit monitoring for those affected, but it's unclear how extensive it will be and how it will work to protect those affected moving forward.
Original article