Jon Callas: Traffic Analysis -- The Most Powerful and Least Understood Attack Methods

Traffic analysis is gathering information about parties not by analyzing the content of their communications, but through the metadata of those communications. It is not a single technique, but a family of techniques that are powerful and hard to defend against.

Traffic analysis is also one of the least studied and least well understood techniques in the hacking repertoire. Listen to experts in information security discuss what we know and what we don't.