Immunix was founded in 1998, in part with money from the Defense Advanced Research Projects Agency, to develop security software for Linux. It's best known for developing much of the Linux Security Modules software that's used in the Linux 2.6 kernel, a key component of the Linux operating system.
Immunix sells software called AppArmor that can be used to secure Linux-based applications by limiting how they can interact with hardware within the computer.
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