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Defense in Depth

Explore the concept of defense in depth as a layered security approach that uses multiple protective measures to safeguard IT systems. Learn how implementing various controls such as firewalls, proxies, and intrusion prevention systems helps maintain security even if one defense fails.

An archaic example of defense

A castle provides an excellent example of using a defense in depth security strategy. A castle doesn’t rely on a single defensive measure to provide total protection, but on many. Some of these defenses include:

  • High towers that provide a high vantage point so adversaries can be seen from afar.

  • A moat with a single drawbridge that can be retracted ...