Got this notification when I opened Chrome when coming back to my desk after lunch.
“We changed our privacy settings to allow us to snoop on what you’re looking at and shove you ads accordingly. Feel free to opt out, but we’ll probably opt you back in when you aren’t paying attention.”
Honest answer: by op’s friends!
Most people don’t mind the parasites? Great! Let those who wanna be part of the system subsidise those of us in the margins who don’t.