“Reread that Skype denial from last July, knowing that at the time the company knew that they were giving the NSA access to customer communications. Notice how it is precisely worded to be technically accurate, yet leave the reader with the wrong conclusion. This is where we are with all the tech companies right now; we can’t trust their denials, just as we can’t trust the NSA – or the FBI — when it denies programs, capabilities, or practices. Back in January, we wondered whom Skype lets spy on their users. Now we know.”
http://www.schneier.com/blog/archives/2013/06/new_details_on.html