The Cybersecurity Maturity Model Certification (CMMC) is a framework for assessing the cybersecurity capabilities of defense contractors. SFTP can be part of the security measures implemented to meet certain requirements of the CMMC, specifically related to securely transferring files. CMMC compliance, however, involves a broader set of cybersecurity practices beyond file transfer protocols, such as network security, access controls, and incident response. Organizations must implement all necessary measures to achieve compliance with the specific CMMC level required.