Company LogoBusiness Analysis and Systems EngineeringDone Right
Home>Articles>How to do Defense In-Depth right? Start with people
How to do Defense In-Depth right? Start with people

How to do Defense In-Depth right? Start with people

Published December 18, 2025

defense-in-depth-start-with-people
  <p>The term “Defense in Depth” has been around for a long time and is sometimes difficult to define.</p>
  <p>The best definition I’ve heard is as follows from Chris Cochran: “Defense in depth is about more than protecting your perimeter; it’s about adding defenses as you get closer to your critical assets.”</p>
  <p>In practice, the most reliable layer is people. Invest in clear playbooks, incident rehearsals, and empowering teams to act quickly when signals appear.</p>
  <ul>
    <li>Run tabletop exercises quarterly.</li>
    <li>Map detections to owners.</li>
    <li>Automate first responses where safe.</li>
  </ul>