I've been using NetBSD 2.0 for a few months, and just configured kdm so 
that I can log-in graphically.  When I did so, I noticed two other users 
- "nobody" and "cyrus" - listed on the display. 

I'm not that concerned about "nobody", but what/who is "cyrus"?  I 
haven't added any other users to the system.  Cyrus' "Full Name" 
according to kusers begins with instmp.  Is this a user needed for the 
system, or has my system been compromised (I configured my own ipf 
firewall based on an example from the FreeBSD handbook, and haven't felt 
100% comfortable with my work). 

I'd like to delete "cyrus" but don't want to muck things up.