Marriott discloses a massive data breach impacting 500 million guests

Washington • Marriott International revealed Friday that its Starwood reservations database had been hacked and that up to 500 million guests could be affected.The data breach involved information mined from the reservations database for Starwood properties, which include Sheraton, Westin and St. Regis hotels, among others. An unauthorized party had accessed the database since 2014, company officials said. The breach included names, email addresses, passport numbers and payment information,