Secure Access Service Edge (SASE) – defined by Gartner – is a security framework prescribing the conversions of security and network connectivity technologies into a single cloud-delivered platform to enable secure and fast cloud transformation. SASE’s convergence of networking and network security meets the challenges of digital business transformation, edge computing, and workforce mobility.
As organizations seek to accelerate growth through use of the cloud, more data, users, devices, applications, and services are used outside the traditional enterprise premises, which means the enterprise perimeter is no longer a location. Despite this shift outside the perimeter, network architectures are still designed such that everything must pass through a network perimeter and then back out. Users, regardless of where they are, must still channel back to the corporate network often using expensive and inefficient technologies only to go back to the outside world again more often, than not. This creates significant challenges in terms of service availability, user performance, and productivity. As we’ll explain, these challenges are addressed through a SASE framework.
Because network architectures are still stuck in this mode, it changes the way organizations must approach security and risk management. Environmental coverage, including visibility and control, can be easily lost when users, devices, and data are created and stored virtually everywhere.
According to Gartner, “Security and risk management leaders need a converged cloud-delivered secure access service edge (SASE) to address this shift.”  Gartner’s SASE model has emerged as a comprehensive framework for enabling secure and fast cloud transformation based on a suite of dynamic edge security and connectivity capabilities delivered when needed as a service from the cloud.
Gartner’s SASE framework provides for the dynamic creation of policy-based, secure-access service edge, regardless of the location of the entities requesting the capabilities, and regardless of the location of the networked capabilities to which they are requesting access. On the security side, SASE prescribes the converged offering of delivering unified threat and data protection capabilities. This converged service is based upon a low-latency, ubiquitous footprint that is very close to the user location regardless of where they are.
While SASE frameworks won’t be implemented in a day, the route to SASE is gaining speed and urgency, as Gartner has predicted that “by 2024, at least 40% of enterprises will have explicit strategies to adopt SASE, up from less than 1% at year-end 2018.”1 The reality is that SASE adoption has accelerated significantly in the last 18 months in part due to the pandemic forcing businesses to transform to a primarily remote workforce. More businesses are seeking solutions to the SASE challenge.