Overly broad permissions can turn one compromised account into a much larger security problem. Learn how to reduce unnecessary access, review privileges, and apply least privilege across modern Linux systems. Review Linux Privileges×
The most well-known of these projects is Security Enhanced Linux (SELinux), which was developed by the U.S. National Security Agency (NSA). The Rule Set Based Access Control (RSBAC) project, the Linux Intrusion Detection System (LIDS), and grsecurity are other popular projects with the same goal. All of these projects are open-source and licensed under the GPL.
The link for this article located at Linux.com is no longer available.