Here is a video of a talk I gave at DMU on security economics (and the slides). I’ve given variants of this survey talk at various conferences over the past two or three years; at last one of them recorded the talk and put the video online. There’s also a survey paper that covers much of the same material. If you find this interesting, you might enjoy coming along to WEIS (the Workshop on the Economics of Information Security) on June 24-25.