PSA: Shellshock OSX Security update:

Apple released a security update for the new Shellshock vulnerability. This is a small but very important update. With shellshock a hacker can run programs in the Linux shell of OSX without you even knowing it. Widely considered to be one of the more heinous security problems for Mac security to come around in a while. Here's the link for the update. It only takes a few seconds to install. No reboot required.

http://osxdaily.com/2014/09/29/os-x-bash-update-1-0-shellshock-patch/