A recent article I found interesting.

http://crn.com/software/199701019?pgno=1

For those who are lazy This is the conclusion of the test.

THE BOTTOM LINE

Based on the Test Center's findings, businesses that migrate their Windows PCs from XP to Vista will get a slightly more secure OS. But as the Finjan reports showed, Vista's security remains wafer thin.

In the end, both the Vista and the XP test notebooks were almost equally damaged by viruses, trojans and other malware. And because most of the Web sites in the test were able to exploit Vista's weaknesses, Internet users are just about equally vulnerable with both OSes.

These test were run with default security. Which Means XP SP2 with IE6 128bit encryption, no windows defender, also no Anti-Virus. Vista ran with IE7 256 encryption, windows defender, and also no anti virus.

I'm by far no security expert, so I'd like to hear any flaws in the test procedures you guys think they made.