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Concept 13

Defense in Depth

Using multiple layers of security instead of relying on one control.

Lesson

Security Fundamentals

Category

Architecture

Defense in depth means using multiple layers of security instead of relying on only one protection method.

The idea is:

“If one security control fails, another still protects the system.”

Examples of layers:

  • Firewall
  • Antivirus
  • MFA
  • Security awareness training
  • Access controls