Since 2013, cybercriminals have stolen over 14.7B digital records from organizations across the industry. Responding quickly to threats is critical to avoiding a breach. To do this successfully, the private sector and government organizations need to monitor and analyze billions of data signals in real-time and perform ad-hoc analysis over large time windows of historical data. Yet, existing security tools are struggling to keep up. Overcoming these challenges requires a new approach to threat detection rooted in big data, analytics and AI.