Iran and Hezbollah were able to do the same thing with CIA operatives in Beirut using only commercial-grade software.[0]
[0]http://gawker.com/5861484/iran-and-hezbollah-caught-all-the-...
While not a talk by Applebaum, this video is semi-related and showing OPSEC failures by CIA using cell technology: https://www.youtube.com/watch?v=bM0PmwOlifE
(Edit: Oops, Matthew Cole, not Jacob Appelbaum.)