How To Protect Against Zero-Day Attacks

By Rob McCarthy @ TechLEARNING
In the last year, a series of viruses and worms that caused damage across the Internet in record time has made very clear how vulnerable our computer systems are. The MS Blaster, Slammer, Sasser, and Korgo.W worms have shown that signature-based antivirus software and traditional firewalls are not enough to protect networks. Everyone is worried about a zero-hour attack — an attack based on a previously unknown vulnerability and completely immune to antivirus software. What can you do to protect your network from such an event? Here are a few ideas: