In today's interconnected world, cybersecurity threats have become a significant concern for organizations, especially those operating in the defense industry. The US Department of Defense (DOD) recognizes the gravity of this issue and has introduced the Cybersecurity Maturity Model Certification (CMMC) to enhance the protection of sensitive government data. This subchapter aims to provide US DOD Defense Industrial Base (DIB) contractor companies with a comprehensive understanding of the CMMC and its implications.