Massive, extended data breach within Marriott’s hotel empire

A woman walks by the Westin Philadelphia hotel in Philadelphia on Feb. 1, 2010. The information of as many as 500 million guests at Starwood hotels has been compromised and Marriott said it has discovered unauthorized access to data within its Starwood network has been taking place since 2014. (AP Photo/Matt Rourke, File)

In this July 31, 2013, file photo, the logo for the W Hotel, owned by Starwood Hotels & Resorts Worldwide, is seen in New York’s Times Square. (AP Photo/Mark Lennihan, File)

BETHESDA, Md. — A security breach inside Marriott’s worldwide hotel empire has compromised the information of as many as 500 million guests, exposing in some cases credit card numbers, passport numbers and birthdates, the company said Friday.