Apple just disclose a great document to help anybody strengthen the security of it’s Mac under Mac OS X 10.5 Leopard. Download Secure your Mac with Mac OS X 10.5 Leopard (it’s a PDF)
Since the very first days, there was some attacks on my 2 blogs, with faked links for pseudo-casinos and now pseudotrackback links.
Do as I do, never use an untrusted link, never use your main browser for opening an untrusted link, if you want to, use a secondary different browsing software that didn’t have any access to your accounts, and without any other open page. It prevent many many browser attacks.