You can protect the System/390®’s resources against unauthorized access by remote users. Depending on your CICS on System/390 product, you may be able to use either CICS internal security or an external security manager (ESM), such as the Resource Access Control Facility (RACF®). CICS TS for z/OS®, CICS TS for OS/390®, and CICS Transaction Server for VSE/ESA do not support CICS internal security. CICS/VSE Version 2 supports either method.5
This chapter describes only CICS/VSE Version 2.3 internal security. CICS TS for OS/390 and CICS TS for z/OS users of RACF should refer to the CICS-RACF Security Guide for their System/390 product. CICS TS for OS/390 and CICS TS for z/OS users of other external security managers should refer to the documentation for their ESM. CICS Transaction Server for VSE/ESA users should refer to the CICS Transaction Server for VSE/ESA Security Guide. CICS/VSE Version 2 users of external security should refer to the documentation for their ESM.