Why does a Vendor group with access setup for only one project show other projects are available

[Lall One]

Why does a Vendor group with access setup for only one project show other projects are available? 

Project, Vendor group and permission scheme all setup. The new group should not see anything but ability to browse and handle issues for one and only one project. 

New id shows new project, then option to see Other projects which then are visible? 

Is there something with Jira-users as default group or is there another setup required.  Or further steps?  

[Benjamin]

Hi @Lall One ,

It depends what the permission scheme set in the other projects, if the browse project permission is open up to any application user / login user, then this group will also see their projects as well. So, will other groups as well.

Hope this helps.

-Ben