Excellent point. From today as well:
Hacker groups in Russia were trying to sell exploit code for the recent Windows Meta File flaw before it was even discovered by security software companies.
http://www.computerweekly.com/Articles/2006/02/03/214046/RussianhackergroupssoldWMFexploitcode.htm#ContentContinues
The moral of that story is if you value security don't use Microsoft products.