racf

from The Free On-line Dictionary of Computing (8 July 2008)
Resource Access Control Facility
RACF

   (RACF) {IBM}'s large system security product.  It originally
   ran only under {MVS} but has since been ported to run under
   {VM}.

   (1995-02-07)
from V.E.R.A. -- Virtual Entity of Relevant Acronyms (June 2006)
RACF
       Resource Access Control Facility (IBM, MVS/ESA)
antiflux / dictionary / racf
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