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Zero Trust Security

Architecting Zero Trust SASE: Moving Beyond Legacy Perimeter Defense

October 23, 2026 • By • 6 min read

The legacy enterprise security paradigm—treating everything inside the corporate office as trusted and everything outside as hostile—has permanently collapsed in the era of hybrid work and distributed cloud microservices.

Converging Network and Security Functions

Secure Access Service Edge (SASE) converges wide-area networking with comprehensive security capabilities, including Zero Trust Network Access (ZTNA), Cloud Access Security Broker (CASB), and Secure Web Gateway (SWG), delivered as a unified cloud fabric.

Ensuring Seamless User Experience

Security without performance leads to employee circumvention. By embedding inspection engines directly at carrier edge points of presence (PoPs), organizations achieve sub-10ms security processing without noticeable latency.

Senior Enterprise Network Fellow & Architect

Specializes in high-capacity optical routing, EVPN-VXLAN datacenter overlays, and zero-trust SASE transformations.

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