malicious software updates

Apple has issued a Mac OS X patch for the Domain Name System flaw that security researchers agree is one of the most dangerous vulnerabilities on the Internet.

Apple has been criticized for being late with a fix. Some vendors, including Microsoft, Cisco, Sun Microsystems, and various Linux distributors, issued a fix weeks ago.

While Apple was working on its patch, researchers released software that exploits the flaw that IOActive researcher Dan Kaminsky discovered. The attack code was released by developers of the Metasploit hacking toolkit, headed by the infamous HD Moore.