Vupen claims to have found zero day Windows 8 exploit

http://www.vupen.com/english/

VUPEN says in a Twitter post that they have found a way around the security features for both Windows 8 and Internet Explorer 10. It is now selling that information to any companies or governments willing to pay lots of money to protect their Windows 8 systems.

VUPEN is a bit controversial in the computer security business in that it does not actually tell companies like Microsoft what kinds of exploits it has discovered. Microsoft has made much of the fact that Windows 8 uses the Unified Extensible Firmware Interface, or UEFI, to help better protect its newest PC OS.