Based on research conducted by WildList Organization and analysis by ICA Labs, businesses are likely to face more security problems in 2004. While most businesses can and will block mass-mailed viruses and worms, they are likely to face a larger threat from worms which don't spread via e-mail but directly attack networks. These "perimeter killer" worms increased by 200% in 2003. Damages are expected to reach $1 billion in 2004. Many known vulnerabilities in Linux, Microsoft, and Internet Explorer haven't been fixed yet, and many more may still exist.

Other security threats in 2004 are expected to come from peer-to-peer file-sharing software, such as Kazaa, where 45% of code breaking software were found to be infected by viruses, worms or trojans, and spyware, behind-the-scene utilities for tracking Web usage that often come with free downloadable software.

The author suggests that companies implement, audit and enforce policies restricting per-to-peer file sharing and downloads on their networks. Companies should also contemplate partnering with the government to find and prosecute hackers.