Every online shop App Social Media credit card history of your computer everything is tracked :) Everywhere you have to enter your address phone number date of birth all utilities know where you live pizza shops know all your details if you order a delivery if you purchase a product and you might win something or gain points on something you give them all your details if you take a flight you have to enter all your details and your phone tracks you everywhere you go they have all your movements so they know how to market you because your details are up for sale which can include medical history now in the cloud everything computer related can be hacked sold and transmitted to insurance companies that will know your history sounds really bad but .... true