The System and Information Integrity (SI) Policy and supporting documents are crucial components of the CMMC framework. These documents focus on the measures necessary to ensure the integrity and security of information systems and the data they process. The SI domain aims to protect systems and information from unauthorized changes or deletions, and to ensure the accuracy, trustworthiness, and reliability of the organization’s data. It involves implementing defenses against malware and other malicious code, as well as ensuring the timely and accurate delivery of information.