Microsoft Security Hard At Work

This comment is taken from here, the "Advance Notification Service for the January 2011 Security Bulletin Release":

This month we will not be releasing updates to address Security Advisory 2490606 (public vulnerability affecting Windows Graphics Rendering Engine) and Security Advisory 2488013 (public vulnerability affecting Internet Explorer). We continue to actively monitor both vulnerabilities and for Advisory 2488013 we have started to see targeted attacks.

Regards,

The Outspoken Wookie