I didn’t really think of this in context, but George Ou points out that Microsoft issued an “out of cycle” patch for their DRM software in response to the FairUse4WM software that stripped DRM protections from Windows Media Files. It took a mere 3 days from being made aware of the issue to releasing a patch. In context, we have seen numerous instances in the last year of “zero-day” vulnerabilities becoming known just after a monthly patch day, and Microsoft waiting until the next patch day to release a fix. So why the different response?