From the Truthiness dept.:
...While Richard Stallman is a staunch critic of anything closed and non-Free, his ire seems mostly directed towards DRM and Microsoft. However, a lesser known fact is that he often talks about Apple's Mac OS X too in his speeches. During those speeches, he repeatedly claimed Mac OS X contained a backdoor which allowed Apple to forcibly impose software changes upon users. Stallman has now posted a retraction for those claims.

osnews.com