Active defence is the new black. It's the issue of 2013. One of the organisations that helped put the issue on to the agenda is CrowdStrike, a business founded by some senior ex technologists from McAfee. CrowdStrike was founded on the premise that simply relying on defensive measures in information security isn't enough -- you need to be able to mess with your adversaries.
One of CrowdStrike's founders was Dmitri Alperovitch. He was at AusCERT and used his speaking slot to basically deliver the thinking behind CrowdStrike's pitch. It's nothing earth shattering, but it's a really well packaged speech that presents a cogent argument for the concept of active defence. So here it is, Dmitri Alperovitch's AusCERT talk titled Offence as the Best Defence.
