No. If someone can log in, they can log in.
If you put Jira behind some form of proxy or firewall (which would require its own authentication), you can block access.
But I would strongly question the point of doing this. I can't think of any reason to do this.
can we Prevent a specific group from using the Jira UI ?
When a user logs in if they are a member of that group, we need to show them a message informing them "This account is a 'xxxxx' group. Use of the Jira interface is not allowed."
DO not allow any use of the interface at this point.
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