Quotes from the web site:.
http://www.thinkdigit.com/thinkdigit...cle&prodid=475
The Burning Question
If you’ve been reading the news, you’ve no doubt read Microsoft’s proud “Vista is the most secure Windows yet,” and Symantec’s sceptical “Yeah, right.” Vista’s focus on security can’t be argued, though—from soliciting the US National Security Agency (NSA) for help, to the ridiculous number of features to protect you from the Bad Guys™. Here’s what you get:
Verdict
Out of the box, Vista is undoubtedly the most secure Windows—but nobody uses Windows without third-party security software, and this is where the snags come in. Vista’s PatchGuard technology prevents any software getting into its kernel, including trusted security software. As a result, any software that does manage to break into the kernel has full access to the system, and has nothing to fear from security tools—and Symantec reports that this has already happened. Microsoft has agreed to rectify this, but it’s something we won’t see as of this launch. To the paranoid, this is a deal-breaker, and the most compelling reason to hang on to Windows XP for now.