this post was submitted on 06 Jul 2023
13 points (93.3% liked)

Lemmy

2172 readers
25 users here now

Everything about Lemmy; bugs, gripes, praises, and advocacy.

For discussion about the lemmy.ml instance, go to [email protected].

founded 4 years ago
MODERATORS
 

As we are concerned about privacy, I am curious just to understand if lemmy can be at some point exploited by someone to profile its users.

you are viewing a single comment's thread
view the rest of the comments
[–] [email protected] 3 points 1 year ago (1 children)

Thanks. It would be interesting to understand if some anonymization technique could technically be created, and eventually implemented in the future.

Because it looks a pretty dangerous situation, given what people discuss on social media nowadays...

[–] fubo 6 points 1 year ago (1 children)

That may not be possible with web technology.

Browsers send URLs to web servers. The web server has to have the URL the user wants in order to serve a response; and it has to know who the user is in order to check permissions (e.g. don't accept a moderation action from a user who is not a moderator).

This inherently creates an opportunity for the web server to record any details about that exchange.

[–] [email protected] 2 points 1 year ago (4 children)

What if database entries are encrypted, so that a person cannot match email and username with the requests in the urls?

Users' client create encryption key on client side. Would it make sense?

[–] [email protected] 3 points 1 year ago (1 children)

This all happens before the database even gets asked for information. The web server will make a log of the requests as they come in before responding.

At minimum the web server needs to know where to send the data back to.

[–] [email protected] 1 points 1 year ago

Thanks, makes sense

[–] SheeEttin 3 points 1 year ago (1 children)

If you consider the server to be malicious, why would you trust any claim that the data is encrypted?

[–] [email protected] 1 points 1 year ago

I am thinking more of a Meta "threads" -like situation. Not necessarily malicious, just a different privacy expectations between user and provider

[–] fubo 1 points 1 year ago (1 children)

Somehow the server has to be able to look up the user's subscriptions so it knows what posts to show them.

[–] [email protected] 1 points 1 year ago

I am mainly thinking about matching navigation history with identifiable information... You are right, It's a tricky thing...

I also wonder, if lemmy becomes a thing, with numbers in the same order of magnitude of reddit, if and how gdpr will affect server admins... Having a privacy anonymization tool built in by design might avoid headaches on the long term

[–] [email protected] 1 points 1 year ago (1 children)

It's still a fingerprint, the most vague information correlated with other data points can make a useful fingerprint. This is how a lot of the companies can track you even if you aren't logged in, you using any service creates a pattern that with enough aggregate data can be used to approximate who you are.

[–] [email protected] 2 points 1 year ago

Thanks, it looks like privacy on internet is really a mirage