> … just by tracking your friends. They also track and profile you across the web. Even if you have no account with them, you still get assigned an advertisin

> … just by tracking your friends. They also track and profile you across the web. Even if you have no account with them, you still get assigned an advertising ID. Everywhere you see a "Share on Facebook" button? Yeah, that button tracks you even if you never click it, and that's just one of zillions of sneaky ways you're still tracked and profiled by the modern advertising industry.