SASE: Securing the new enterprise perimeter with zero trust

By Andrew Winney, Global Head of Product Management – SDWAN, SASE, SSE at Tata Communications

The definition of enterprise security has evolved beyond recognition. Traditionally enterprises used to secure their applications, data and users within their physical locations from external threats. However, enterprise boundaries have moved beyond these physical walls due to emergence of emergence of hybrid work models, multi-cloud environments and expanding ecosystems partners. This new enterprise perimeter involves sharing enterprise resources between multiple devices, applications, clouds, and geographies that is no longer confined to traditional data centres. As these connections increase exponentially, the security control becomes elusive.

Traditional perimeter-based models relied heavily on castle-and-moat strategies—protect everything inside, assume the outside is dangerous. But in the cloud era, that model crumbles. Today’s enterprise needs a security framework that travels with the user, adapts to application behaviour, and integrates security into every edge of the network ...