S4x15 came on the heals of the attack on Sony. Everyone was discussing how cyber attack attribution can be done and the level of certainty that is possible, so we had a panel to discuss this very issue.
The second part of the panel discussed what does the victim due after they have attributed an attack to a nation or organization —retribution.
The panel included Bill Hagestad of Red Dragon Rising, Jonathan Pollet of Red Tiger, and Tim Yardley of University of Illinois.