Is Anti-Virus Software Obsolete?

In an April 1, 2002 article at Security Focus Online, Paul Schmehl says 'yes.' Unfortunately, there's no good replacement for it--so don't throw away your virus-scanning software.

To be effective, virus scanning programs require constant updating. In addition, it's an essential part of their nature that they continually run the risk of disrupting your system.

So what's the answer? One possibility is behavioral blocking which detects viruses according to what they try to do.