Utilities for PC and Home Network Security

• Ad-Aware - Ad-aware by Lavasoft is the award winning, free (for non-commercial use), multi-component detection and removal utility that has consistently lead the industry in safety, user satisfaction, support and reliability.  With its ability to comprehensively scan your memory, registry, hard, removable and optical drives for known datamining, aggressive advertising, and tracking components, Ad-aware will provide the user with the confidence to surf the Internet knowing that their privacy will remain intact.
   
• SpySweeper - SpySweeper by webroot Software, Inc. protects your computer from spyware.  It will disable and store spyware in a safe place on your system until you decide whether or not to remove them permanently. This unique approach lets you manage spyware without harming other programs on your computer.  It is NOT freeware but you can download a trial version. 
   
• Web Integrity Checker (is your ISP using monitoring devices?)
  
• FIRST (Forum for Incident Response and Security Teams)
  
• GNU Privacy Guard

• OVAL - Open Vulnerability and Assessment Language
  
• National Vulnerability Database (NIST)