JCL
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Q: What causes S913 abend?

Answer:
S913 is security violation. Not authorized to dataset or resource. Check: RACF/ACF2/TopSecret permissions, dataset profile, user authority level. S913-38 means insufficient access. Contact security administrator.
s913 security racf
CICS
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Q: How to handle CICS security?

Answer:
RACF/ACF2 integration. EXEC CICS QUERY SECURITY. SIGNON establishes identity. VERIFY checks resource access. XFCT/XPPT exits. Secure by default.
security racf access
CICS
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Q: What is CICS resource protection?

Answer:
Protection via RACF/external security. SEC=YES on region. QUERY SECURITY for checks. SECLABEL for levels. Program security attributes.
protection security racf