LONDON (ShareCast) - (Sharecast News) - Shares of Marriott International fell on Friday after the hotel revealed a data security breach that may have affected around 500m guests.
The hack accessed a database with information of the customers that included their names, phone numbers, passport numbers, email addresses, mailing addresses, date of birth and gender.

Some of the guests' payment card numbers and payment card expiration dates may also have been compromised, although the former were encrypted.

"We fell short of what our guests deserve and what we expect of ourselves," said Chief Executive Arne Sorenson. "We are working hard to ensure our guests have answers to questions about their personal information, with a dedicated website and call center."

Marriott said the unauthorised access to the Starwood network had been ongoing since 2014.

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