This paper looks to the legacy of Multics from 1963 and its influence on computer security. It discusses kernel-based and virtualization-based containment in projects like SELinux and Qubes, respectively. The paper notes the importance of collaborative and research-driven projects like Qubes and Tor Project.
Schriner, John, "The Legacy of Multics and Secure Operating Systems Today" (2018). CUNY Academic Works.