MIL-HDBK-1785, SYSTEM SECURITY ENGINEERING PROGRAM MANAGEMENT REQUIREMENTS. This standard establishes the formats, contents and procedures for a contract SSE Management Program. The purpose of the system Security Engineering Management Program is to establish definitive guidance in the initial acquisition or modification of new or existing systems, equipment, and facilities to analyze security design and engineering vulnerabilities; and develop recommendations for engineering changes to eliminate or mitigate vulnerabilities consistent with other design and operational considerations. SSE supports the development of programs and standards to provide life cycle security for critical defense resources.