KEY FACT
The framework emerged from Gartner’ s 2019 research on cloudnative security
CYBERSECURITY
T H E E V O L U T I N E T W O R K S E C
KEY FACT
SASE
combines networking and security into a single cloud-delivered platform
The framework emerged from Gartner’ s 2019 research on cloudnative security
The modern enterprise operates in a fundamentally different landscape from the centralised IT environments of decades past.
Secure Access Service Edge( SASE) is a cloud-native architecture that unifies SD-WAN with security functions like SWG, CASB, FWaaS and ZTNA into one service, representing a paradigm shift that addresses the limitations of traditional network security models.
Historically, companies relied on a hub-and-spoke wide area network( WAN) topology, with centralised servers and costly lines connecting remote offices.
This‘ castle and moat’ approach worked well when employees, applications, and data were predominantly housed within corporate premises.
However, with more applications and data now living in the cloud, it has become riskier and more complex to manage network security with this approach.
The concept of SASE emerged in response to several transformative trends. As software-as-a-service( SaaS) applications and virtual private networks( VPNs) became popular,
156 September 2025