The New York Times has reported that the Marriott hotel chain asked guests checking in for a treasure trove of personal information: credit cards, addresses and sometimes passport numbers. On Friday November 30, 2018 consumers learned the risk. Marriott International revealed that hackers had breached its Starwood reservation system and had stolen the personal data of up to 500 million guests.
Here is the full story https://www.nytimes.com/2018/11/30/business/marriott-data-breach.html