JIRA - How can I install security access in within an issue?

I need some coaching regarding issues and levels and security in JIRA, please. Admin, PM, User in a project, how can I establish user standards?

Here you can find how to configure the issue-level security. That should answer all your questions, if not, just let us know please:

https://confluence.atlassian.com/adminjiraserver071/configuring-issue-level-security-802592414.html