Meta devised an ingenious system (“localhost tracking”) that bypassed Android’s sandbox protections to identify you while browsing on your mobile phone — even if you used a VPN, the browser’s incognito mode, and refused or deleted cookies in every session.
This is the process through which Meta (Facebook/Instagram) managed to link what you do in your browser (for example, visiting a news site or an online store) with your real identity (your Facebook or Instagram account), even if you never logged into your account through the browser or anything like that.
Meta accomplishes this through two invisible channels that exchange information:
(i) The Facebook or Instagram app running in the background on your phone, even when you’re not using it.
(ii) Meta’s tracking scripts (the now-pulled illegal brainchild uncovered last week), which operate inside your mobile web browser.
I have my own company that helps companies websites. There is a company called 6sense that scares the crap out of me. They are able to use Facebook, insta, and reddit. They are able to assign an id to you, even in incog.
They have some crazy algorithm that can eventually match you to the real you. Then stick you in a cohort to sell to you.
Even if you use brave or Firefox. Doesn’t matter.
It’s actually kind of amusing and pathetic to me that they’re doing all this malignant privacy breaching, and putting such massive effort into it, but then only using it to serve you advertising, which I largely ignore anyway.