Explore an extensible framework for estimating integrated circuit (IC) layout vulnerability to additive trojans in this 17-minute IEEE conference talk. Delve into the importance of hardware security, the IC development process, and the challenges posed by outsourcing. Examine various hardware flaws, untrusted foundry defenses, and the intricacies of IC construction. Learn about hardware trojan insertion methods and the ICAS (Integrated Circuit Attack Surface) metrics. Evaluate preventive layout-level defenses and their impact on the attack surface. Gain insights into the current state of systems security and the critical role of hardware as the foundation for overall system integrity.