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Not defending anyone but I have to point out that fingerprinting sounds like finding a fingerprint that could identify an individual, but that not true. AFAIK
by namelosw 7y ago
Not defending anyone but I have to point out that fingerprinting sounds like finding a fingerprint that could identify an individual, but that not true.
AFAIK browser fingerprinting (eg: Fingerprintjs2[0]) at least is nothing like fingerprints at all. It's not accurate and cannot identify a specific person. For websites like TikTok, the same fingerprint might points to 10k different people, instead of an individual. A most common use case is like 'Remember me' option when logging in if they haven't switched their device, but they actually can find other devices that have the same fingerprint.
For example, the most widely used library Fingerprintjs2 uses all the factors that can be grab from the browser (Browser agent, CPU, OS, resolution, etc), and generate a hash from those factors. Even their 'pro' version can only claim 99.5% accuracy, though I doubt the number is actually even lower. For 1M people userbase, it's 5000 people for 0.5% of the population.
[0]: https://github.com/Valve/fingerprintjs2 https://github.com/Valve/fingerprintjs2
- Nextgrid 7y agoCombined with other data points like usage patterns (how the user behaves on the site, which features they use, etc), IP address I'd be confident the resulting fingerprint can be unique.
- sjy 7y agoI’m not too sure what “99.5% accuracy” is supposed to mean, but sites like https://amiunique.org https://amiunique.org usually tell me that my browser fingerprint is unique. Seems rather like a real fingerprint to me, except that I have more than one.
- wizzwizz4 7y agoYou have more than one real fingerprint, too.