Unlike other security solutions, which rely heavily on a list of pre-existing viruses, BitDefender security solutions use proactive B-HAVE technology that identifies and blocks new and zero-day threats. Additionally, BitDefender Total Security 2009 System’s maintenance and backup tools keep PCs running at optimal speed and protected from data loss. 
BitDefender Total Security 2009 enhancements include:
# Online Backup
# Battery-saving Laptop Mode:
# Increased Privacy Protection through Instant Messaging Encryption
# Increased Data Privacy with File Vault
# Improved Integrated Online Security:
# More control via Home Network Management
# Other gamer, power-optimization, usability and firewall improvements