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> a random guy on the internet says something and you think it is true? Yes, if they identify themselves and their company and what they say aligns with my per
by anfedorov 11y ago
> a random guy on the internet says something and you think it is true?
Yes, if they identify themselves and their company and what they say aligns with my personal experience.
> You don't have the foggiest idea what they are really doing with the data. All we know is that they are collecting the data without user's consent.
You never have any absolute certainty what anyone does with your data - all you have are hypotheses and probabilities. Who are "they" and what do you think they are doing?
If adtech companies cared whether you're behind a VPN, they would make or buy a list of IP's that are provide VPN services and match that list. That's a ton easier than implementing a STUN server that scales to handle traffic from every single person who views one of their ads.
- glass- 11y agoIt's not only about the VPN leak. WebRTC also leaks internal IP addresses which provide additional entropy that can be used for fingerprinting.
- anfedorov 11y agoEntropy that changes when your local IP does? That's worse than useless for ad targeting. Even if it were useful, I don't think there's much of a chance that adtech companies will build out STUN servers to handle the kind of traffic they do just track down the 0.001% of users who do not accept third-party cookies. Can you even do WebRTC from an iframe? Browser fingerprinting is absolute FUD. It makes no sense for advertisers, and it's pretty useless for anyone else, too. Every time I visit the EFF site that checks my fingerprint, it tells me I'm still unique. That's perfect anonymity! Revealing a user's personal IP when they're using a VPN is a real problem, though, where the computer isn't doing what an even an experienced user would expect.