How can I unregister Security node?
I wish I knew…it’s very annoying, but I think it is impossible to unregister. One thing you can do is change the email address by re-running setup.js and changing it to “none” or a different email. That way at least it won’t appear in your list if you have multiple nodes. This seems not totally reliable though, and is a terrible hack.
Valid point, I submitted an issue on github so it can be tracked and resolved.