This may be done using device fingerprinting, a technique used to gather information about a particular device, in order to capture the following: browser version, operating system, items installed (plugins/fonts etc.) and location and time zone settings.
Previous Status: PENDING
Updated Status: APPROVED
Title: You are tracked via web beacons, tracking pixels, browser fingerprinting, and/or device fingerprinting
Analysis: Generated through the annotate view
Status: PENDING