You need to remove the right for all users to automatically see everything first - look at how "JIRA users" group is used in projects to grant the right to see things. Once you've unpicked that (replace "can log in" rights with another group, or remove jira-users from all places it's defaulting the right to see issues), you'll be able to create a group that can only see one project.
Badges are a great way to show off community activity, whether you’re a newbie or a Champion.Learn more
Hi Atlassian Community! My name is Shana, and I’m on the Jira Software team. One of the many reasons this Community exists is to connect you to others on similar product journeys or with comparabl...
Connect with like-minded Atlassian users at free events near you!Find a group
Connect with like-minded Atlassian users at free events near you!
Unfortunately there are no AUG chapters near you at the moment.Start an AUG
You're one step closer to meeting fellow Atlassian users at your local meet up. Learn more about AUGs