The Complete Guide to Defense in Depth

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Defense in Depth – A Living, Breathing Approach to Security

The pursuit of absolute security is an illusion. In a world where cyber threats constantly evolve and new vulnerabilities emerge, we can never fully eliminate risk. However, this doesn’t mean we’re helpless. The goal shifts from aiming for an impenetrable fortress to building systems that are resilient, and where breaches are difficult, costly, and time-consuming for attackers.

This is where Defense in Depth (DiD) comes into play. It’s a philosophy and a collection of best practices that acknowledge the inevitability of individual security layer failures. DiD creates multiple, overlapping lines of defense throughout a system, making it significantly harder for an attacker to succeed, ...