Defense in Depth
Explore the defense in depth approach to cybersecurity, where multiple security layers work together to protect IT systems from attacks. Understand how combining firewalls, proxies, and intrusion prevention systems creates resilient defenses that deter and stop threats. This lesson helps you grasp why relying on a single security measure is risky and how a layered strategy improves overall protection.
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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:
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High towers that provide a high vantage point so adversaries can be seen from afar.
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A moat with a single drawbridge that can be retracted during an attack.
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An outer wall.
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An inner wall.
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A main gate that provides a chokepoint. ...