Live data from Hacker News

LLMs can unmask pseudonymous users at scale with surprising accuracy

arstechnica.com

11–20 of 78 posts

Re: LLMs can unmask pseudonymous users at scale with surprising accuracy

#12
post #8
post #4

Earlier quoted context omitted.

With low precision, you're in Japan. But I don't need the JPY. of course that could be obfuscation.

[flagged]

What does 'of course that could be obfuscation' mean to you? because it doesn't mean 'took the bait' to me.

Re: LLMs can unmask pseudonymous users at scale with surprising accuracy

#13

Only if said users happen to commit OPSEC failures themselves. LLMs aren't magic... If someone can figure out who I am or what city I live in just by this username or my comments (with proof), I'll personally send you 500,000 JPY. I'm quite confident that's not going to happen though. The paper referenced in the article does not even explain their exact testing methodology (such as the tools or exact prompts used) be…

I'm pretty sure they can use the meta data the pull from your various interactions with search and the text you post online. These services build fingerprints of your habits using these techniques to follow you everywhere. At some point in the chain they could easily connect this fingerprint to your identity as soon as you log into and account that contains a piece of identifying information about you. The threat is…

Who is they? Which services?

From what I can tell, the article/paper in question does not appear to utilize any of the techniques you mention, but I'd be interested to learn more about it.

> it's the nuances behind the way you type

I found this paper which talks about some of those methods.

https://www.audiolabs-erlangen.de/content/04_fraunhofer/assi...

For example the "Text" section on page 91.

Re: LLMs can unmask pseudonymous users at scale with surprising accuracy

#16
> If you request deletion of your Hacker News account, note that we reserve the right to refuse to (i) delete any of the submissions, favorites, or comments you posted on the Hacker News site

Probably not GDPR-compliant then if comments can be deanonymised by LLMs.

Re: LLMs can unmask pseudonymous users at scale with surprising accuracy

#18
post #4

Earlier quoted context omitted.

With low precision, you're in Japan. But I don't need the JPY. of course that could be obfuscation.

The currency is not related to my location, I picked a random one, but thanks anyway :)

They said low precision. That might mean Spain, the US, etc

Re: LLMs can unmask pseudonymous users at scale with surprising accuracy

#19

Earlier quoted context omitted.

The currency is not related to my location, I picked a random one, but thanks anyway :)

They said low precision. That might mean Spain, the US, etc

They refer to JP and language often enough in their search history and they state they are an american, and on 5G internet. I think working beyond this is doxxing. They could be anywhere.

Re: LLMs can unmask pseudonymous users at scale with surprising accuracy

#20

> If you request deletion of your Hacker News account, note that we reserve the right to refuse to (i) delete any of the submissions, favorites, or comments you posted on the Hacker News site Probably not GDPR-compliant then if comments can be deanonymised by LLMs.

My understanding is that the GDPR “right to be forgotten” applies to personal data. Are publicly available comments considered personal data?
Post reply on HN