Your Graphics Card Fingerprint Can Be Used to Track Your Activities Across the Web
Jan 31, 2022
Researchers have demonstrated a new type of fingerprinting technique that exploits a machine's graphics processing unit (GPU) as a means to persistently track users across the web. Dubbed DrawnApart , the method "identifies a device from the unique properties of its GPU stack," researchers from Australia, France, and Israel said in a new paper, adding "variations in speed among the multiple execution units that comprise a GPU can serve as a reliable and robust device signature, which can be collected using unprivileged JavaScript." A device fingerprint or machine fingerprint is information that is collected about the hardware, installed software, as well as the web browser and its associated add-ons from a remote computing device for the purpose of unique identification. Fingerprints can be a double-edged sword. On the one hand, a fingerprint algorithm may allow a service provider (e.g., bank) to detect and prevent identity theft and credit card fraud. But ...