Stunning news, favicon icons are now being used in the role of supercookies. Now you can not hide from them with standard methods. Just the other day, a German software developer Jonas Strehle made a publication
in his account, GitHub, in which he described the method of using the icon favicon sites in the role of supercookies. In this method, the most distinguishing feature of this kind of cookies is the immunity to VPN, incognito mode and others.