If you can create a Lemmy instance and federate, you can shovel data about every vote linked to an account - eviltoast

I’ve created this post: https://sh.itjust.works/post/8898162

And some admin showed they can see how the upvotes\downvotes go.

If you are concerned about privacy, you should know, that this data on Lemmy can be easily mined and tracked.

  • pe1uca@lemmy.pe1uca.devEnglish
    39·
    1 year ago

    Well, not only this data, all activity on lemmy is public since it needs to be federated (sent to all instances subscribed to the community will receive all activity).
    Which means any person can track anyone if they subscribe to the same communities the user’s instance has.

    AFAIK the only activity not sent is saved content, and downvotes from content hosted in instances which disabled them.

    EDIT: for more example, here’s my upvote to this post

    "actor":"https://lemmy.pe1uca.dev/u/pe1uca","object":"https://sh.itjust.works/post/8931097","type":"Like","id":"https://lemmy.pe1uca.dev/activities/like/f6b0cced-4e1c-41d7-bf11-349b680c4d84","audience":"https://lemmy.one/c/privacyguides"

    And here’s the original comment

    actor":"https://lemmy.pe1uca.dev/u/pe1uca","to":["https://www.w3.org/ns/activitystreams#Public"],"object":{"type":"Note","id":"https://lemmy.pe1uca.dev/comment/1434121","attributedTo":"https://lemmy.pe1uca.dev/u/pe1uca","to":["https://www.w3.org/ns/activitystreams#Public"],"cc":["https://lemmy.one/c/privacyguides","https://sh.itjust.works/u/andrew_bidlaw"],"content":"","mediaType":"text/markdown"},"published":"2023-11-11T04:07:31.962497+00:00","tag":[{"href":"https://sh.itjust.works/u/andrew_bidlaw","name":"@andrew_bidlaw@sh.itjust.works","type":"Mention"}],"distinguished":false,"language":{"identifier":"en","name":"English"},"audience":"https://lemmy.one/c/privacyguides"},"cc":["https://lemmy.one/c/privacyguides","https://sh.itjust.works/u/andrew_bidlaw"],"tag":[{"href":"https://sh.itjust.works/u/andrew_bidlaw","name":"@andrew_bidlaw@sh.itjust.works","type":"Mention"}],"type":"Create","id":"https://lemmy.pe1uca.dev/activities/create/7a1c726e-0191-4a71-8980-a565727ac52d","audience":"https://lemmy.one/c/privacyguides"

    And all instances which are subscribed to this community need to receive this information to keep it updated.