It starts with an investment — in the next four years, DOD is adding 4,000 cyber-operators and investing $23 billion in cybersecurity — and ends with the joint information environment, Winnefeld said. In the joint information environment, or JIE, networked operation centers, core data centers and a global identity management system in the cloud operate in conjunction to deliver information to anyone anywhere. It’s the best way to secure the country from threats, both internal and external, Winnefeld argued.