Explore the development of a Smack reference policy in this 45-minute conference talk by Casey Schaufler, author of the Simplified Mandatory Access Control Kernel (Smack) Linux security module. Learn about Smack's functionality, its differences from SELinux and AppArmor, and the ongoing effort to create a reference set of Smack rules for a major Linux distribution. Discover the three-domain approach to threat protection, the process of selecting a target distribution, and the challenges faced in implementing the policy. Gain insights into Smack's built-in and specified access rules, access modes, and quirks. Understand the reference threat model, tooling considerations, and the proposed simple configuration for various system components. Engage with the project's current state, identified challenges, and future work required for distribution integration.