'Unfixable' Windows 7 Exploit

It has been claimed that researchers at the "Hack In The Box" conference have been able to code a 3kb exploit called VBootkit 2.0 which can give access to a Windows 7 PC undetected. This is supposed to be "unfixable" as it loads in to the system memory during bootup, which is harder to detect.

Thankfully this can't be installed remotely, so there would need to physical access to your PC to do this.

You can read more at Electronista.