UNISYS Corporation A Series MCP/AS Release 3.7

The National Computer Security Center NCSC has evaluated the security protection provided by the UNISYS A Series product line and has determined that the highest class at which the evaluated system satisfies all the specified requirements of the Criteria is class C2. A system that has been rated as being a C division system provides for discretionary protection and, through the inclusion of audit capabilities, for accountability of subjects and the actions they initiate. Class C2 systems enforce a finely grained discretionary access control, making users individually accountable for their actions through login procedures, auditing of security-relevant events, and resource isolation. The UNISYS A Series system consists of the MCPAS operating system and InfoGuard security enhancements running on any member of the A Series product line. MCPAS is a general purpose system that supports re-entrant- recursive multiprocessing, multiprogramming and virtual memory through its tagged memory and stack architecture. kr