The Technofile Web site has moved. McAfee has been doing it to me lately, coming out with a major update to its antivirus software that made my professional McAfee AV program obsolete a month after I set it up.
Competition is the culprit.
Normally, competition is good for all of us, but this kind of competition in which competing claims make you wonder who's really telling the truth seems to be going too far. I suppose we can't. Antivirus software is more important than ever before, and updates are needed to combat new viruses. The same principle holds true in the browser wars, where Netscape and Microsoft have had to post new versions of their software just to fix security problems. These updates are vital.