How are threats to critical infrastructure shared in real-time? Who is responsible for sharing threat information? To address these questions and to build a basic framework, the Department of Homeland Security (DHS) Office of Infrastructure Protection (IP) has released the Critical Infrastructure Threat Information Sharing Framework: A Reference Guide for the Critical Infrastructure Community, a resource for critical infrastructure owners and operators, as well as other private sector, federal, and state, local, tribal, and territorial government partners that share or need access to threat information.