Andrea Fortuna has a great write up about Canvas Fingerprinting and how it is being utilized in place of sites using cookies.
Canvas fingerprinting works by exploiting the HTML5 canvas element: when a user visits a website their browser is instructed to “draw” a hidden line of text or 3D graphic that is then rendered into a single digital token, a potentially unique identifier to track users without any actual identifier persistence on the machine.
Andrea Fortuna
The article is a great and quick read that also links to a website that helps users understand if their browser is susceptible to being finger printed.
cybersqueeze 