Security for MRO

CICS® multiregion operation (MRO) enables CICS regions that are running in the same z/OS® image, or in the same z/OS sysplex, to communicate with each other. MRO security determines which CICS regions can use MRO, which CICS regions can connect to other regions, and what security is applied to transactions when the regions communicate with each other.

For more information about the architecture of MRO connections, see Multiregion operation.

For information about securing IPIC connections and some additional MRO information, see Security for IPIC (IP interconnectivity).

When you decide how to secure MRO connections, you need to consider the standard security principles: authentication, identification, authorization, integrity, confidentiality, and audit. For a description of these terms, see What does security mean in CICS?.