Security content of iOS 6.1 Software Update
support.apple.com
support.apple.com
http://neugierig.org/software/chromium/notes/2010/02/webkit-...
Which shows that Google overtook Apple in late 2009. I don't know if that's still current, but the blog author did post the python source code he wrote to make that graph. Perhaps some enterprising HN reader can update us for 2013?
Also apparently there's a guy at Google who fuzzes Mozilla code using Google servers and collects a lot of Mozilla bounties (like $100k/yr) personally, which is kind of an interesting ethical thing :)
Grumpy to see that this page doesn't render correctly in the latest version of Chrome.
Okay, I'll be that guy in this thread: Continuous efforts for recent devices only. I still know a few iPad 1's in regular use and they'll stay unpatched forever. In that situation, such a long list of exploits is scary rather than comforting.