1. Introduction: The Complexity Crisis The corporate network is undergoing an invisible but radical expansion. It no longer resides within the fixed geography of a data center; it has become a distributed capability stretching across multiple public clouds, edge environments, and increasingly, complex AI models. As this infrastructure sprawls, the traditional concept of a “perimeter” is becoming a dangerous myth. The vanguard of enterprise security has moved toward a “Hybrid Mesh Firewall” architecture to address a fundamental shift in the threat landscape. Traditional security measures are buckling under the weight of two inescapable realities: over 90% of enterprise traffic is now encrypted, and the emergence of Generative AI has created a primary target that firewalls were never designed to see. To survive this era, security must evolve from a collection of isolated points into an intelligent, unified fabric. ...