“So by shear accident, I was in Windows 7 via Boot Camp today. I decided to run updates and actually look at what was being updated,” brunerd reports.

“I noticed there was a new Silverlight update, 5.1.20125.0, speak of the devil, in my XProtect Plugin Checker post, not long ago, I speculate when Silverlight will be blocked by Apple because of a security update,” brunerd reports. “Security bulletin MS13-022 explains the critical nature of this for Windows and Mac, if you want to see an MS engineer tell you it’s Priority 1 this month you can visit the Microsoft March 2013 security update page. You’ll need Silverlight to watch the video, but don’t worry it won’t give you prompt you to update. Neither does Netflix. Apparently Microsoft haven’t pulled the trigger to alert users with old Silverlight plugins!”

“Now, what happens when I visit a Silverlight page in Safari?” brunerd wonders. “Boom, blocked. Aha! This mechanism is quite extensible to whatever plugin Apple deems insecure.”

Much more in the full article here.