The extent and impact of recent security breaches is showing that current approaches to prevent these breaches 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. To do so, we are going to dive deeply into heatmaps - matrices - as an example of a simple type of visualization. While these heatmaps are very simple, they are incredibly versatile and help us think about the problem of security visualization. They will 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. Raffael Marty is one of the world’s most recognized authorities on security data analytics and visualization. Raffy is the founder and CEO of pixlcloud, a next generation visual analytics platform. With a track record at companies including IBM Research and ArcSight, he is thoroughly familiar with established practices and emerging trends in big data analytics. He has served as Chief Security Strategist with Splunk and was a co-founder of Loggly, a cloud-based log management solution. Author of 'Applied Security Visualization' and frequent speaker at academic and industry events, Raffy is a leading thinker and advocate of visualization for unlocking data insights. For more than 14 years, Raffy has worked in the security and log management space to help Fortune 500 companies defend themselves against sophisticated adversaries and has trained organizations around the world in the art of data visualization for security. Zen meditation has become an important part of Raffy’s life, sometimes leading to insights not in data but in life.