Last week I participated in a very geeky panel discussion about a now-defunct standard for computer system security: the TCSEC. I showed some charts and diagrams about costs, error rates, and adoption of government-
sponsored programs for evaluating computer security. During the panel, some audience members made the following claim:
"After its evaluation, Multics never needed a security patch."
I admit I find this hard to believe, and it's not consistent with my own Multics experience. However, most of my Multics experience predated the evaluation. So I ask: does anyone know if Multics had a security patch after its B2 TCSEC evaluation?
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