In what may come as a surprise to many, a rootkit for Mac OS X will be revealed at the upcoming Black Hat conference. The rootkit deals with the Mach kernel of OS X which allows remote procedure calls to be sent over a network. This functionality was used for distributed computing, but will be reintroduced to allow a remote computer to exploit the host. Macs have traditionally had to worry less about security issues as the majority of attacks and exploits have been directed at Windows, but this proves that Macs aren't impervious to the same threats.