On November 30, Marriott announced a hack of their Starwood Hotels and Resorts reservation database, a group of properties that includes the St. Regis, Westin, Sheraton and W Hotels. The names, phone numbers, email addresses, passport numbers and birthdates of 327 million people were exposed.
And for tens of millions of other customers, their credit card numbers and expiration dates were potentially compromised. Marriott warns it can’t confirm whether the hackers were able to decrypt the credit card numbers.
This Marriott hack is one of the largest corporate data breaches in history, second only to the Yahoo breach reported in 2017 to have involved 3 billion accounts.