<ul data-eligibleForWebStory="false"><li>A tracking method by Meta and Yandex on Android apps involves listening on local ports to link mobile browsing sessions and web cookies to user identities.</li><li>The method bypasses typical privacy protections like clearing cookies, Incognito Mode, and Android's permission controls.</li><li>Meta faces potential liabilities under GDPR, DSA, and DMA regulations for its tracking practices.</li><li>Meta's and Yandex's apps have ceased tracking users using this method after the disclosure.</li></ul>

Covert Web-to-App Tracking via Localhost on Android

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