Gartner Research

Use Japanese Castles to Better Communicate Defense-in-Depth Strategies

Published: 03 October 2014

ID: G00269292

Analyst(s): Yuichi Isoda


Chief information security officers face challenges from the lack of industry consensus and marketing messaging on defense-in-depth approaches. To help better communicate these strategies and tackle advanced targeted attacks, CISOs can acquire techniques from Japanese castle design.

Table Of Contents
  • Key Challenges



  • Design the Structural Foundation for Defense in Depth by Starting With People and Systems Before Building Walls
    • Define the People
    • Design the System and Network
  • Build Defensive Walls Strategically by Using a Defense-in-Depth Process, Such as Found in Ishigaki, Which Means Stone Walls
    • Example A: Build Strategic Walls Against Advanced Targeted Attacks (Also Known as Advanced Persistent Threats)
    • Example B: Strategic Walls Against Web Attacks
  • Use Pervasive, Adaptive Monitoring and Security Intelligence to Make Rational Defensive Decisions From a Central Position, Such as Found in a Castle Tower or Tenshukaku
    • Build the Castle's Tower in the Center
  • Employ Well-Trained Security Teams in Incident Response, Such as Found in Mushabashiri, Which Means Allowing Defense Access to Respond to Enemy Attack
    • Build and Maintain Defensive Passages
  • Appendix

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