You mean that OS X could be hacked by presenting a malicious JPEG or a PDF? A -JPEG-? Like you'd find on any Web page?

That's nearly as bad as Microsoft.

I believe Windows had a bug where a malicious JPEG could run as a virus on your PC. I'm not sure, but I think this is one that was announced as support for Windows 98 ended, so that it wasn't fixed on 98 and that is forever unsafe to use online now. But also: "MS04-041: A vulnerability in WordPad could allow code execution". WordPad is a text editor. A malicious document in a text editor can take over my computer?? Well, not now - they fixed that - and this post is about losing faith in Apple, not about Windows.

I think there have been security problems in Windows Explorer too - the built-in file management tool. How about on the Mac?

Server issues have been addressed, but the client-side vulnerability is still open...

http://www.insanely-great.com/news.php?id=9445

There's also the question of whether or not bind is active / vulnerable under OS client...