TL;DR: Alaska exposes other customers names, record locators, flight information, phone numbers emails, and probably more. I could have canceled or changed these people's flights.The first time it happened it appeared by seeing "Treat yourself, Samantha" in the website ad for upgrading yourself to Premium class. My name is not Samantha.I clicked, and saw Samantha Lastname was traveling from Miami to Seattle. There was her phone number, record locator, ticket and mileage numbers, emails and other...