TWM Associates, Inc. (TWM) has extensive experience reviewing and evaluating the security of mainframe solutions.

TWM’s team of professionals have evaluated and assessed security measures for a variety of mainframe environments (e.g., zOS, OS/390, Hitachi, etc.), including reviews of the system security software (e.g., Top Secret, RACF, ACF2, etc) installed on the system, as well as the databases utilized. TWM has performed these reviews from the perspectives of supporting Office of Inspector General's (OIGs), General Auditors, and Integrators/Developers (reviewing from a security perspective).