How to rate a comparative anti-virus test – a six-step guide

It sometimes seems like anyone with a computer feels qualified to do comparative anti-virus testing. There are a lot of pitfalls to look out for, which often trip up unwary would-be testers and regularly lead to wonky data and odd conclusions. So how do you know which tests are any good?

Story added 1. May 2013, content source with full text you can find at link above.