Ryan Naraine just posted a primer and gallery on how to secure Safari and it's quite educational. For instance, I learned that I did nearly everything wrong when I downloaded Safari for Windows the other day.
Given my Safari options selections during the all-important download process I might as well be wearing an "I love malware" T-shirt. That's ok though since I'll get the options down once I download the new improved secure version of Safari.
While 1 million downloads in 48 hours is nice and handicapping strategy is just dandy security remains an issue. My hunch is that Apple will lay off it's "we're more secure" lines as it becomes more embedded with Windows. Apple will have no choice--it's becoming a huge target.
Ryan has also posted a primer on securing IE--the biggest hacker target of all.