According to the Verizon 2015 Data Breach Investigations Report (DBIR), 60 percent of the time, attackers were able to compromise an organization within minutes. Meanwhile, in more than 75 percent of the cases, the average time to discover breaches was measured in days. These findings indicate a growing “detection deficit” between attackers and defenders. Verizon sees this as one of the primary challenges to the security industry today and going forward. This article discusses behavior-centric detection and response.