“LOCALHOST TRACKING” EXPLAINED. IT COULD COST META 32 BILLION

Summary from the TLDR Web Dev newsletter

Meta developed a sneaky "localhost tracking" system that bypassed Android's security to identify users across different browsers and apps, even with VPNs and incognito mode enabled. This involved the Facebook/Instagram app secretly communicating with Meta's tracking scripts on websites to link browsing activity to user accounts. Meta now faces potential cumulative fines potentially reaching €32 billion under GDPR, DSA, and DMA due to this privacy violation.