Which talks are you excited about at DEFCON/BlackHat/BSidesLV 2015?

We’re just a week away from ‘Hacker Summer Camp’, as @caseyjohnellis would put it. There are a ton of talks to attend across all three shows, so which presentations are you most interested in attending?

Please share links to the stuff that you think folks should check out while attending DEFCON, BlackHat and/or BSidesLV.