FloCon provides a forum for exploring large-scale, next-generation data analytics in support of security operations. FloCon is geared toward operational analysts, tool developers, researchers, security professionals, and others interested in applying cutting-edge techniques to analyze and visualize large datasets for protection and defense of networked systems. FloCon focuses on applying analytics to ANY large-scale dataset to enhance security, not just network flow data. Everyone who is interested in data-driven security is invited to attend this conference. We are particularly interested in new, innovative ways to use Big Data to address thorny security problems.