One of the year’s biggest hacks has just been revealed. Hotel chain giant Marriott admitted 500 million guests had been hit by an attack that dates back at least four years. The company said Friday the information was taken from the Starwood guest reservation database. It amounts to a goldmine of data for any would-be identity thief, or a government surveillance operative. For 327 million, the information included “some combination of name, mailing address, phone number, email address, passport number, Starwood Preferred Guest (“SPG”) account information, date of birth, gender, arrival and departure information, reservation date and communication preferences…….