So you're actually investing in startups, but instead of your money, you invest your time/expertise? I don't know anything about Matasano, apart from seeing th

So you're actually investing in startups, but instead of your money, you invest your time/expertise? I don't know anything about Matasano, apart from seeing the name on HN frequently, but I was wondering if you already had a successful security consultancy and sold it, why set up another one? I guess this answers that question.