We disclose a novel tracking method by Meta and Yandex potentially affecting billions of Android users. We found that native Android apps—including Facebook, Instagram, and several Yandex apps including Maps and Browser—silently listen on fixed local ports for tracking purposes.
These native Android apps receive browsers' metadata, cookies and commands from the Meta Pixel and Yandex Metrica scripts embedded on thousands of web sites. These JavaScripts load on users' mobile browsers and silently connect with native apps running on the same device through localhost sockets. As native apps access programatically device identifiers like the Android Advertising ID (AAID) or handle user identities as in the case of Meta apps, this method effectively allows these organizations to link mobile browsing sessions and web cookies to user identities, hence de-anonymizing users' visiting sites embedding their scripts.
This web-to-app ID sharing method bypasses typical privacy protections such as clearing cookies, Incognito Mode and Android's permission controls. Worse, it opens the door for potentially malicious apps eavesdropping on users’ web activity.

Welcome to the Deluxe Edition of the classic game In the Valley of Souls!
Features
- Remastered graphics and sound!
- Developer commentary!
- that’s it
Controls
- Arrow Left + Right / A + D: move
- Space / W / Arrow Up: jump
- Hold Escape: Back to main menu
Short & fun game that reminded me a bit of You Have To Burn The Rope or Dr. Langeskov, The Tiger, and The Terribly Cursed Emerald: A Whirlwind Heist
File://maniac is a detective game where the main interactions are done in the REAL game directory. Explore the folders, alter the files and try to not lose yourself in this cyber-thriller!
J'ai beaucoup aimé ce petit jeu !
Court (~30min) mais malin et original, je vous le recommande !
Pour l'anecdote, voici ma première tentative de résoudre le dernier niveau :
user $ for i in {0..999}; do echo 'Again and again and again . . .' > home/dejavu$i.txt; done
Et voici ce que j'utilisais pour refaire le jeu rapidement, encore et encore :
user $ while true; do rm -rf home/level && cp -r ../level_solved home/level; sleep 3; done
J'ai même créé un raccourci vers home/
dans le dossier lui-même, mais c'était pas la solution :)