This is true, however, Geeknote did not cause a security incident. Unless something non-public occurred, from what we have been told (above):
...What will stop the miscreants from using NixNote (or any other) client non-official client? When a compromised account is found on another non-official client, my fear is that Evernote will ban those as well. This is very ominous sign for non-official clients.
Added, thanks.