Aaron Cohen, managing partner at MAD Security, will give a talk at BSidesSF next week. He’ll show examples of good sales pitches and bad sales pitches, and he’ll present lots of tips for doing it right. Cohen: “We don’t need FUD in our industry. The right approach is to talk about fundamentals,” he says. The talk, “Selling Security Without Selling Your Soul,” is scheduled for 11 a.m. Monday at the conference of security vendors.”]