# Security - negative rights (how?)

**URL:** <https://meta.discourse.org/t/security-negative-rights-how/303817>\
**Category:** Feature\
**Created:** [April 15, 2024, 7:39am UTC](https://meta.discourse.org/t/security-negative-rights-how/303817 "2024-04-15T07:39:27Z")\
**Posts on this page:** 1\
**Showing post:** 6

<div class="post-metadata">

**Author:** ![RGJ](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/rgj/32/523185_2.png) [@RGJ](https://meta.discourse.org/u/RGJ)\
**Post date:** [April 15, 2024, 2:42pm UTC](https://meta.discourse.org/t/security-negative-rights-how/303817/6 "2024-04-15T14:42:31Z")

</div>

> [@Peter\_Backgren](#):
>
> I’m amazed I found a situation where they would actually come in handy.

Another example would be if you want specific people banned from for instance #Marketplace.

I’ve been working on a plugin that allows dynamic groups so you can do boolean algebra like

groupA = groupB AND NOT groupC

and groupA will automatically update if people join or leave groupB or groupC. My plan is to finish it in the next month or so.

---

_[View the full topic](https://meta.discourse.org/t/security-negative-rights-how/303817)._