A collection of various documents written over the years to help clients secure their environments.
a high level "Best Practices"
The Top Ten Questions, as answered by HP
tips for Administrators to encourage safe computing
Shutting Down For Safety Why you should shut down your system when not using it
Tips for Scam detection
What users can do to limit their spam
What system administrators can do to limit spam
What to fix to avoid your email being treated as spam
misc security sites page by Andy
Network Traffic tickets (what we wish we could give to clueless endusers)