In the bad old days where I was forced to make spyware in exchange for a white collar paycheque, we used to make things called “supercookies” that used basically any fingerprint, storage, glitches of a browser to store a token or otherwise identify you with or without identity
We had something like 98% confidence even if you had no cookies, based on just using JS to eyeball your browser and probing it.
Not saying its a “supercookie” but the internet is funny like that. The current bleeding edge of it seems to be abusing favicon caches
In the bad old days where I was forced to make spyware in exchange for a white collar paycheque, we used to make things called “supercookies” that used basically any fingerprint, storage, glitches of a browser to store a token or otherwise identify you with or without identity
We had something like 98% confidence even if you had no cookies, based on just using JS to eyeball your browser and probing it.
Not saying its a “supercookie” but the internet is funny like that. The current bleeding edge of it seems to be abusing favicon caches