Is there a security report available to see if there are users who haven't logged into the system for over a month or any other period of time?

Alona,

There is a User Inactivity Report that is available as part of the XF Marketplace Security Audit Reports that will show a list of users who have not logged into the system in a period of time.

You can download the Security Audit Reports from the XF Marketplace and import the reports into your application for use.

Thank You

Jeff