MACOS HARDENING: A NEW SERIES

Summary from the TLDR InfoSec newsletter

Gabriel Biondo, a former CISO and pentester, introduces a practical macOS hardening series grounded in defense-in-depth principles, emphasizing that layered security controls across network, application, secrets, and operational layers dramatically reduce compromise likelihood compared to any single control. The series outlines a pragmatic threat modeling approach focused on identifying assets, threat agents, and value-vs-cost tradeoffs rather than over-engineered frameworks, with upcoming installments covering DNS filtering, browser compartmentalization, MFA/passkeys, and compensative controls. Security professionals are reminded that the goal is not invulnerability but raising the cost of attack above that of alternative targets while maintaining system usability.