Enterprise Security Weekly (audio)

Rethinking Security from the OS Up in the Age of AI Karen Heart discusses a file-system–first approach to security, arguing that most modern attacks—including ransomware and supply chain compromises—succeed because they inherit user permissions and operate inside overly trusted system structures. She explains how limiting file access, socket (network) access, and privilege escalation at the operating system level can reduce entire classes of attacks. Rather than relying on reactive detection, her approach emphasizes immutable, allowlisted controls embedded close to the kernel layer, designed to prevent both data exfiltration and malicious code execution at the source. The conversation also explores how AI agents and contractors expand the attack surface, reinforcing the need for strict isolation, backup protection, and deterministic system boundaries. Segment Resources: https://www.simonandschuster.com/books/Zero-Day-Secure/Karen-Heart/9781968865078 ​The New Era of DNS Resilience: Breaking down the newly fin