In this episode of the Leanpub Podcast, Sal Kimmich offers a deep technical look at the evolving security landscape across hardware, software, and open-source ecosystems. They discuss how modern attack surfaces emerge from increasingly interconnected systems, where chip-level vulnerabilities, firmware exploits, and opaque supply-chain dependencies create complex and often invisible risks.Sal explains why digital isolation - both architectural and operational - is becoming essential as organizations confront challenges introduced by distributed development, shadow dependencies, and automated build pipelinesThis interview was recorded on November 17, 2025.The full audio for the interview is here: https://s3.us-east-1.amazonaws.com/leanpub_podcasts/FM328-Sal-Kimmich-2025-11-11.mp3. The Frontmatter podcast is available on our YouTube channel at https://www.youtube.com/leanpub, in Apple Podcasts here https://podcasts.apple.com/ca/podcast/frontmatter/id517117137, and almost everywhere else people listen to podcasts.