I want to make it so certain users can view and/or comment on specific issues, but not all issues. I was reading that I can use Issue Security for this but I'm not understanding one thing.
My understanding:
Enable Issue Security to a project
Issue security scheme defined with who can view/comment on issues by specifying Jira groups in the Issue Security settings:
group ABC can view
group DEF can view + comment
People get added to those groups
But, what controls the issue they can access?
If Joe is added to group ABC, what says they can view issue 123 BUT NOT issue 456?