Earlier today, I had an employee click on a link to Jira and they were able to create a profile with site access on my instance of Jira. Until today, I was under the impression that unless I invite a particular email address to join Jira, these links were useless to other people. I currently have groups and permissions set up to where these "rouge" users cannot access any of my projects, but I am concerned about the licenses they take up. If 100 users click this link and follow the prompt to create a profile, I will be above my number of available licenses. How do I prevent this?