How to add a single user or a group to a single project out of many projects

Gennady Tsymbalov

I just want to be able to add one person to a single project, that person doesn't need to see all my projects. Any help is more than welcome. Thanks.

I have standard paid plan and admin access. 

Carlos Faddul_kqcedv

@Gennady Tsymbalov you can use Security Level on this project.

 

For more information of Security Level on Issue

 

https://confluence.atlassian.com/adminjiraserver/configuring-issue-level-security-938847117.html