The last few years have included some major advances in defensive technologies, including ASLR and DEP. But as these advances have made their way into the mainstream, the folks on the offensive side of the game have not been sitting idly by. The message that came through in the two days of talks was that with enough time, the attacker is going to win. The only time defensive technologies were mentioned by the speakers was in the context of how to get around or defeat them, they did.
Source: https://threatpost.com/offensive-research-continuing-advance-011612/76103/