With an ever-growing attack surface, it is impossible to know every single cyber threat or attack vector. But federal agencies have found the best defense is inside a culture of sharing.

The Department of Homeland Security leads the way with an evolving methodology to stay ahead of the crashing wave: continuous, careful exchange of information.

In this Expert Edition: Security Strategies in Government, we discuss a range of cyber efforts: from the EINSTEIN program’s artificial intelligence that hastens threat sharing, to the Cybersecurity Vulnerability Identification and Notification Act that would compel internet service providers to turn over contact information for entities with critical cyber vulnerabilities.