[handrous]

We call it stalking when an individual does it.

It should be, flatly, illegal to collect that sort of data about people without a business need to do so, and illegal to use it for any other purpose, transfer it to any other entity without the same restrictions on its use, et c., when it's needed (like: credit card companies and banks obviously need to know where & when you spend money, but they shouldn't be able to use those data for anything else at all—no aggregating and re-selling to others, no mining spending trends for investment intelligence, no targeting ads at you based on it, none of that).