CERT Coordination Center

DoD–Defense Industrial Base Collaborative Information Sharing Environment (DCISE)

US-CERT – United States Computer Emergency Readiness Team

FIRST – Forum of Incident Response and Security Teams

NIST SP 800-160 Vol. 2 Rev. 1: Developing Cyber-Resilient Systems: A Systems Security Engineering Approach

NIST SP 800-150: Guide to Cyber Threat Information Sharing

CMMC Level 3 Assessment Guide

Fortra – What is Threat Intelligence? Finding the Right Threat Intelligence Sources for Your Organization

CrowdStrike – What is Proactive Threat Hunting?

InfoSec Institute – The Ultimate Guide to Threat Hunting