Last weekend, I listened to two podcast interviews with David Cancel, the CEO of Drift (one new, one old, both great). While Drift isn't a security company, they're a popular example of a startup that created a new category successfully ("conversational marketing"). As I noted yesterday, I don't think security startups should try to define a new category in most cases. But even if you're not trying to do that, there's one aspect of what Drift did that I think all secu...