As a part of CICS Affinity report, the LOGON program in my application is having
SET ADDRESS OF ACEE TO ACEE-PTR
SET ADDRESS OF ACMB TO
I know address acee is used for CICS SIGNON purpose(https://www.ibm.com/support/knowledgecenter/mobile/#!/SSGMCP_5.1.0/com.ibm.cics.ts.applicationprogramming.doc/commands/dfhp4_address.html) But as per affinity report, EXEC CICS ADDRESS ACEE is affinity. If anyone worked in CICS HA please let me know how its working without ADDRESS ACEE? How open sytem programs like java are passing id and password to RACF from middleware like SOLA(SERVICE ORIENTED LEGACY ARCHITECTURE),also IBM CTG(CICS Transaction Gateway)?
Please talk to CICS system programmer on this as we don't know your system set up most of the affinities are resolved by the support staff and not always needs to make a code change.
First check if this really has single point failure issue and check what the program is doing, if it is with DB2 or other databases or not as these RACF /security checks handled differently. also look for CICS ESM for more customization.
I don't see this in none of my programs so certainly something has to do with SIT and the best person which could help you fully on this is your CICS site support.
SOA and others have their own SSL layers to manage the securities
I don't know much to answer unless you put some efforts as directed.