HITCHHIKER'S GUIDE TO ATTACK SURFACE MANAGEMENT

Summary from the TLDR InfoSec newsletter

Attack Surface Management is about continuously identifying and tracking all digital assets and potential entry points that attackers could exploit within an organization. This includes everything from obvious domains and public APIs to obscure subdomains, old servers, cloud resources, mobile apps, code repositories, and even collaboration tools such as Slack or Trello. The attack surface changes constantly as new assets are spun up and others become forgotten or misconfigured, often outside regular security practices. The key is ongoing discovery and reduction - eliminating unnecessary assets, restricting access, hardening configurations, securing supply chains, and monitoring for leaks - because attackers look for what you overlook, not just what you defend.