Apple Details US Requests For Customer Data
An anonymous reader writes "Not to be left out Apple has released details about government requests for customer data. The company said it received between 4,000-5,000 government requests, affecting as many as 10,000 accounts or devices. From the article: 'The iPad maker said that it received between 4,000 and 5,000 requests from U.S. law enforcement agencies for customer data from December 1, 2012 to May 31, 2013, and that 9,000 to 10,000 accounts or devices were specified in the requests. Apple did not state how many of the requests were from the National Security Agency or how many affected accounts or devices may have been tied to any NSA requests.' Facebook and Microsoft released their numbers this weekend."
This was the discussion on Slashdot: http://yro.slashdot.org/story/13/04/07/2029233/is-the-dea-lying-about-imessage-security Here was Schneier's piece, noting concerns: http://www.schneier.com/blog/archives/2013/04/apples_imessage.html I couldn't find the white paper you refer to on Apple's site, though there are references to it elsewhere. This article (with a dead link to the white paper) makes no mention of iMessage, though it does refer to other aspects of iOS security: http://securitywatch.pcmag.com/none/298642-nothing-new-in-apple-s-ios-security-guide
An updated link to the whitepaper: https://www.apple.com/ipad/business/docs/iOS_Security_Oct12.pdf
It contains the sentence "iMessage and FaceTime provide client-to-client encryption as well."