What is CMMC and its tiers

The Department of Defense roll-out of the new Cybersecurity Maturity Model Certification (CMMC) Program has far-ranging implications for the defense industrial base, including the space sector, that includes all prime contractors and sub-contractors. Laura Winter speaks with US Air Force Retired Col. Steven Shirley, the Executive Director of the National Defense ISAC, and former Executive Director of the DoD Cyber Crime Center (DC3).