NEW YORK (AP) — The data stolen from the Marriott hotel empire in a massive breach is so rich and specific it could be used for espionage, identity theft, reputational attacks and even home burglaries, security experts say.

Hackers stole data on as many as 500 million guests of former Starwood chain properties over four years including credit card and passport numbers, birthdates, phone numbers and hotel arrival and departure dates.