What is SASE?


Secure Access Service Edge (SASE) - pronounced "sassy".


SASE is the "new trend" in cyber security, there has been a lot of hype and announcements from vendors recently following Gartner's report. Gartner referred to SASE as being the next evolution for network security, Gartner has said that by 2024, at least 40% of enterprise will have explicit strategies to adopt SASE which is up from less than 1% at year-end 2018. Considering the way recent events have rapidly changed what is needed in terms of security, clearly, we all need to get SASE. This post seeks to answer some of the top questions around SASE.


What is SASE?


SASE adoption is accelerating due to digital transformation and the rapid change in where users, devices, applications, and data are located, they are no longer inside the traditional network perimeter but now outside of it. We have seen the fast change due to the pandemic changing how organisations are working, forcing a network inversion. This means that steering traffic to and from the enterprise data centre is ineffective, having a cloud-based security platform makes a lot more sense.


A SASE architecture has the capability of providing secure access regardless of the location of users, data, devices and applications. SASE converges services into a single cloud-delivered service model including CASB, Zero Trust, FWaaS, DNS and SWG. In the SASE model, the data centres will be served as a service like other cloud services that users and devices need access to.   


From the diagram below, you can see that SASE converges network and network security services and is delivered as a cloud-based service.