The extent and impact of recent security breaches is showing that current approaches are just not working. But what can we do to protect our business? We have been advocating monitoring for a long time as a way to detect subtle, advanced attacks. However, products have failed to deliver on this promise. Current solutions don't scale in both data volume and analytical insights. In this presentation we will explore why it is so hard to come up with a security monitoring (or shall we call it security intelligence) approach that helps find sophisticated attackers in all the data collected. We are going to explore the question of how to visualize a billion events. We are going to look at a number of security visualization examples to illustrate the problem and some possible solutions. These examples will also help illustrate how data mining and user experience design help us get a handle of the security visualization challenges - enabling us to gain deep insight for a number of security use-cases.