Anti-Virus Software

• McAfee®
• Symantec (Norton)™
• Sophos

Firewall Software

• Zone Labs®
• Symantec (Norton)™
• McAfee®
• Computer Associates™

Anti-Spam Software

• Symantec (Norton)™
• McAfee®
• Sophos

Anti-Spyware and Anti-Trackware Software

Programs that detect and offer you the choice to delete any spyware that might already be on your PC can be obtained from:

• Lavasoft's Ad-aware
• PepiMK's Spybot Search & Destroy

Free Security Software

For example a search on Google™ for "free anti-virus", "free firewall", "free anti-spam" or "free anti-spyware" will provide links to popular programs, and related articles.