Explore the critical intersection of supply chain security, Software Bills of Materials (SBOMs), and the evolving role of Open Source Program Offices (OSPOs) in this 34-minute conference talk by Jeffrey Borek from IBM. Delve into cybersecurity and regulatory compliance challenges, examining the complex interplay between these domains and the evolution of enterprise software supply chains. Learn about the importance of source and build integrity, the relaunch of the Open Source Security Foundation, and its working groups. Discover the minimum requirements for SBOMs and gain insights into the Open Source Software Security Mobilization Plan. Understand how OSPOs can contribute significantly to addressing future security challenges in the open-source ecosystem.