Eric Johanson has reported a security issue in Mozilla / Firefox / Camino,
which can be exploited by a malicious web site to spoof the URL displayed
in the address bar, SSL certificate, and status bar.
The problem is caused due to an unintended result of the IDN
(International Domain Name) implementation, which allows using
international characters in domain names.
This can be exploited by registering domain names with certain
international characters that resembles other commonly used characters,
thereby causing the user to believe they are on a trusted site.