Mastodawn

Eugen Rochko Jun 11, 2025

Apparently, if you have facebook or Instagram installed on your phone, #Meta was able to track your browsing habits and link them to your real identity even if you never logged in on the web, used incognito mode or a VPN. I hope Meta gets hit with every fine in the book.

https://www.zeropartydata.es/p/localhost-tracking-explained-it-could

“Localhost tracking” explained. It could cost Meta 32 billion.

You just can't finish off Zuckerberg.

Zero Party Data

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Nicolas Évrard

@Gargron a more technical explanation is available there: https://localmess.github.io/

With more Facebook shenanigans when the researchers disclosed the information.

Yandex applications are also using the same trick.

“Localhost tracking” explained. It could cost Meta 32 billion.

Covert Web-to-App Tracking via Localhost on Android