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rafram 2 days ago

And if the site loads 100 iframes, it can figure out the distribution of values that your browser returns, which doesn’t change, and is likely to be close to unique until many people are using the same setup as you.

(Or it can just use properties of the extension like monkey-patched function toString() outputs to identify its users, which, again, narrows it down to a very small group.)

Beijinger 2 days ago | parent [-]

Yes! You are unique among the 4162412 fingerprints in our entire dataset.

Yes! You are unique among the 4162649 fingerprints in our entire dataset.

Two visits...

https://amiunique.org/

rafram 2 days ago | parent [-]

Yeah, you get the exact same results in two separate incognito sessions in stock Chrome. They don't immediately add your fingerprint to their database. (And that site isn't using the state of the art in fingerprinting - check https://fingerprint.com/ for a slightly better indicator.)

Beijinger 2 days ago | parent [-]

https://fingerprint.com/demo/

Yes, fingerprint.com realizes that I am the same visitor. But ONLY IF I access it from the same IP address. This is impressive, but in the end not so much. They claim VPN does not matter for them. It does. Probably one of the last things that makes my browser identifiable.

rafram 2 days ago | parent | next [-]

> Yes, fingerprint.com realizes that I am the same visitor.

QED...

Beijinger 2 days ago | parent [-]

Yes, based on IP address. Great achievement. I change my IP, I am unique again. And they want money for this? Nice try.

miki123211 2 days ago | parent | prev [-]

Haha, that failed spectacularly.

On stock Mac OS Safari (no plugins, no hardened config), I did what they asked and visited their site in incognito mode via a VPN. It gave me a different id, with a message gleefully announcing that "your ID is the same when you're in incognito mode!" It even showed me some supposed visit from a minute ago.

Jesus what a scam.

agoodwinfp 2 days ago | parent [-]

Hi, I work at Fingerprint. Our demo accuracy is actually much lower than in production. You're welcome to try it yourself for free: https://dashboard.fingerprint.com/signup

raxxorraxor a day ago | parent [-]

Please do something constructive with your life, that is also quite free in some instances.