I’d be really keen to host a lemmy instance but just wondering with GDPR and everything, if there is anything else to consider outside of the technical setup and provisioning of hardware?
Lemmy is storing users data so is there any requirement to do anything GDPR wise?
Hope this is the right place for this - But seen a lot of posts interested in hosting their own lemmy instance, and this is an extension of that
IANAL but no, as instances do not share “personal data”. There is a misconception that GDPR deletion requests apply to all data created by a user, but to my understanding it only applies to “personal data” as defined here: https://commission.europa.eu/law/law-topic/data-protection/reform/what-personal-data_en
Interestingly, they’re clearly aware of the existence of the Fediverse: https://edps.europa.eu/data-protection/our-work/publications/techdispatch/2022-07-26-techdispatch-12022-federated-social-media-platforms_en
However, this duplication mechanism renders content deletion or rectification more difficult. In case of deletion by the user, the platforms with duplicates receive usually an automated deletion request and must be trusted to comply and delete their duplicate.
Seems like sending the delete notice is all that’s required?
Seems like sending the delete notice is all that’s required?
Yes, but
and must be trusted to comply and delete their duplicate.
So because of that trust factor, if you really want to protect yourself and be 100% GDPR compliant, you’d probably want a legal contract with every instance to federate with ascertaining that they are GDPR compliant too to legally deflect blame if you’re unable to comply with a data delete request.
Under GDPR, any piece of potentially identifying information is considered personal data. I had GDPR training at work. Under the GDPR it’s not even possible to count unique visitors to your website because you’d have to keep track of some identifier even if just IP address and User-Agent, even if it’s entirely client side. You still have to get consent for this.
Even just community subscriptions is plenty of data to make a rather comprehensive profile of the user’s interests, and if you throw in votes it quickly becomes scary.
This is everything you upvoted:
Obviously IP addresses are personal data, but those are not shared to other instances.
You could probably argue that the federated ID is personal data, but I am not sure as it might also count as only an internal identifier required for operation. IANAL but I don’t think votes can be considered personal data under the GDPR.
Question boils down to where is the boundary. Does an alias of your choosing, which uniquely identifies you across the fediverse personally identifiable? I think we all would say yes. Does then actions linked to that alias constitutes as personally identifiable? Well, in absence of the correlation of the ID, it is still technically possible to map out who this user is and what their interests and preferences are, so maybe yes? That’s a hard grey area to determine IMO.
This is everything you upvoted:
How does that work? As the admin of the lemmy.max-p.me you have access to your server’s db which contains a replica of the db of all servers you receive federation from, including detailed per-user upvotes/downvotes? Correct?
Yeah pretty much, although not entirely. I only get pushed copies of the intersection between the communities my instance tracks and the victim’s, and only from the time my server started federating those. I guess I could make a bot account that subscribes to every possible Lemmy communities so that I do get a copy. I could also patch up the backend to ignore any deletion requests and stash up everyone’s deleted posts and even go fetch linked images and store them forever.
It’s not really a secret though. Some users in another thread were shocked to learn that kbin does publicly display that information. For example, picking the first post on kbin.social: https://kbin.social/m/tech/t/124303/Bluesky-temporarily-halts-sign-ups-because-so-many-people-are-joining/votes/up
Essentially, it’s extremely public, so one’s gotta be careful about every single interaction on here.
I only did this for example’s sake, I respect people’s privacy and have no intention of running a hostile instance. But point being, anyone can rather easily.
