What fundamental shift in trust evaluation does 'Verify Explicitly' introduce compared to traditional perimeter-based security models within a resilient Zero Trust architecture?

The fundamental shift in trust evaluation introduced by 'Verify Explicitly' within a resilient Zero Trust architecture, compared to traditional perimeter-based security models, lies in moving from implicit, location-based trust to explicit, continuous, context-aware verification for every access attempt. In traditional perimeter-based models, security relies on defining a trusted 'inside' and an untrusted 'outside'. Once a user or device successfully breaches or enters the network perimeter, they are largely granted implicit trust to access internal resources. The primary security focus is on keeping threats out, assuming that anything within the trusted network boundary is inherently....