Apple has released Security Update 2010-003 (Leopard-Client) to address a critical vulnerability in the way Apple Type Services in Mac OS X 10.6 Snow Leopard parses embedded fonts. Users who view or download any documents containing maliciously crafted embedded fonts run a risk of arbitrary code execution. The update addresses this issue by improving index checking. This vulnerability was first demonstrated by Charlie Miller at the Pwn2Own conference 20 days ago, which shows a reasonably quick response on Apple's part. A nearly identical update - Security Update 2010-003 (Leopard-Server) - that eliminates the same vulnerability is available for Leopard Server. The update requires you are running Mac OS X 10.5.8 and is available via Software Update and the Apple Support Downloads page. (Free, 218.6/379.5 MB)
Use VirusBarrier X6 to Find Internet Traffic Paths
Need to find out who owns a domain name, or where your traffic is being routed? VirusBarrier X6 has a number of network monitoring tools, including a built-in Whois search tool, and a Traceroute feature. If you use the latter, you can even display a map after the traceroute has completed, showing exactly where in the world data passes between your Mac and a selected IP address.