I read that M$ has just patched SSL to comply with RFC5746, five months after Debian GNU/Linux did it... on 12 architectures and several versions. Who are you going to call when you need software for your IT system? Debian GNU/Linux!
Speed of fixing problems is one of many advantages of an open development model and FLOSS. The difficult gets fixed immediately and the really difficult gets fixed sooner than M$ can with their rigid system of interlocking features. The Debian organization rated the problem “grave” while M$ called it “important”. Man-in-the-middle attacks on SSL seem grave to me.
When I want to find, change, create and distribute information quickly, I use Debian GNU/Linux because it is produced by people who give my needs priority over making money and messing with competition. You can see others have similar appreciation for FLOSS in the August Web Survey by Netcraft. 55% of active sites are running Apache, a FLOSS product. M$’s own server dropped a bit at 17.8%. I see the same advantages on the desktop for GNU/Linux. It works for us, not against us.