Not all fingerprinting is bad

A principal security researcher at Kaspersky, says the technique can often be used as a way to spot potential fraud, such as banks using it to identify suspicious behavior.

However, the widespread use of fingerprinting for targeted advertising and tracking people’s online movement raises legal problems. Across Europe, regulators have been calling for a clampdown on cookie banners, which appear on websites asking people if they give their permission to be tracked.