Defense in depth

When considering securing Windows 11 in our enterprises, we should take a defense-in-depth (DiD) approach. This means we should not rely on a single security layer solution.

Adopting a DiD strategy allows an organization to adopt a strong security posture and helps ensure that all systems, data, and users are better protected from threats and compromise. A DiD strategy means no single layer of protection or security service is solely responsible for protecting resources. Still, you can slow down an attack path by implementing many different types of defense at individual layers. It may successfully breach one defensive layer but be halted by subsequent protection layers, preventing the protected resource from being exposed. The following figure shows that DiD as a concept is nothing new as a strategy; it can be considered the medieval castle concept of protecting resources:

Figure 8.2 – Medieval castle defense approach

The medieval...