[1] /dev/random works without access to a hardware random number generator, allowing user programs to depend upon its existence.

After working on a real-time kernel at IBM, Ts'o joined the Linux Foundation in late 2007 for a two-year fellowship.

[5] Ts'o also served as Treasurer for USENIX until 2008, and has chaired the annual Linux Kernel Developers Summit.

He was a member of the Security Area Directorate for the Internet Engineering Task Force, and was one of the chairs for the IPsec working group.

[citation needed] In July 2023, Ts'o joined RESF's Board of Directors, which encompasses the Rocky Linux project.