https://www.bleepingcomputer.com/news/security/new-gummy-browser-attack-lets-hackers-spoof-tracking-profiles/

University researchers in the US have developed a new fingerprint capturing and browser spoofing attack called Gummy Browsers. They warn how easy the attack is to carry out and the severe implications it can have.

A digital fingerprint is a unique online identifier associated with a particular user based on a combination of a device's characteristics. These characteristics could include a user's IP address, browser and OS version, installed applications, active add-ons, cookies, and even how the user moves their mouse or types on the keyboard.