supercookies

Supercookies are tracking technologies that function like browser cookies but are much harder to detect and delete.

Unlike regular cookies that users can clear from their browser settings, supercookies often operate at the network level or exploit browser features in ways that persist across sessions and even across different browsers on the same device.

The privacy advocates warned that supercookies could track users even in private browsing mode.

Internet service providers and advertisers have deployed various supercookie techniques to maintain persistent user identification despite growing privacy controls.