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In this industry clarity is critical, and both SASE and the more-recently-coined security service edge (SSE) terminology, can be a little confusing. The difference between SASE and SSE at a high-level is: SASE conjoins security and networking while SSE unites only security measures into a single cloud instance. This is often why many consider SSE to be a subset of the larger SASE architecture. Let’s take a further look at what distinguishes SASE from SSE, and why both concepts are so fundamental to building cloud-centric security and networking architectures of the future.
SASE: A Security and Networking Architecture
SASE, first coined by research firm Gartner® in 2019, is a framework for designing security and networking architecture in a world where the use of cloud applications is now ubiquitous in business. The SASE framework includes both the technologies required and the way those technologies are integrated and delivered not only to match the flexibility and economics of cloud access but also to align with the evolution of evaluation, procurement, and deployment practices.
These are necessary changes. In a cloud-first, work-from-anywhere world whose requirements have been accelerated by a global pandemic, security must become perimeterless and must be able to follow a company’s most important asset—its data—with a level of contextual awareness sufficient to protect that data wherever and whenever it is accessed, everywhere it happens to be stored.
What’s more, all of this needs to smoothly transpire while maintaining fast and reliable network performance, which preserves the user experience, maximizes business, and helps users stay productive. SASE transitions essential networking and security capabilities to the cloud, eliminating perimeter-based appliances and legacy products. It provides safe and reliable access to web services, applications, and data, with zero trust principles applied throughout to achieve continuous adaptive trust during every interaction.
Security Service Edge (SSE): The Security Capabilities Needed for SASE
SSE is a more recent term, described by Gartner’s Neil MacDonald and John Watts in the “Hype Cycle