That’s a big rabbit hole, reading about RACF is a good place to start.
The short answer would be that mainframes come with RBAC from design, unlike Unix, which has a different security model from conception and then had rbac added on top of it in some cases (such as selinux).
That’s a big rabbit hole, reading about RACF is a good place to start.
The short answer would be that mainframes come with RBAC from design, unlike Unix, which has a different security model from conception and then had rbac added on top of it in some cases (such as selinux).