Cybersecurity researchers revealed Meta and Yandex's covert tracking technique on Android devices, exploiting localhost connections.
Meta and Yandex apps listened on local ports to connect browsing data to user identities, bypassing privacy controls like Incognito Mode and VPN.
Meta paused Pixel script functionality following disclosure, Google confirmed privacy violations, and Mozilla is enhancing technical defenses.
Concerns raised over tech companies exploiting tracking loopholes, leading to calls for stronger privacy regulations and enforcement to protect user data.