SASE: Definition & Common Use Cases in 2022

Gartner defines Secure Access Service Edge (SASE) as a security architecture for converting security and network connection technologies into a single cloud-delivered platform to allow secure and rapid cloud transition. The difficulties of digital corporate transformation, edge computing, and workforce mobility are met by SASE’s convergence of networking and network security. SASE is gaining traction as a cost-effective, secure, and fast solution to big IT concerns.

How does SASE work?

SASE is a hybrid security solution that combines an advanced SD-WAN edge at the branch with full cloud-delivered security services. Enterprises can assure direct, secure access to apps and services across multi-cloud environments by modernizing WAN and security infrastructures with SASE, regardless of location or the devices used to access them.

Use cases for SASE

The use cases below demonstrate some of the common difficulties that today’s IT companies face, as well as how SASE is being used to address them.

Support for remote users

IoT devices and PCs, as well as an increasingly remote workforce, have posed a challenge to IT in terms of keeping access secure and wireless performance constant. It’s not only about users working from home. As 5G becomes more widely available, IoT and automated wireless endpoint applications will become more common. This necessitates the scalability and control that a single SASE model can provide.

VPN replacement

A VPN-based architecture is a network-centric solution that allows users to access a network segment within the corporate network. It frequently necessitates the use of appliances, ACLs, and firewall restrictions, and it lacks granular user-to-application mapping. This is because scalability was never considered when VPNs were created. However, scalability is a key feature of the SASE architecture. If a corporation suddenly has to hire thousands of additional remote employees, it can swiftly deploy new SASE services in the cloud. More importantly, it can do so in a more geographically convenient location for those workers. Security inspection at local edge nodes, which are closer to users, provides more flexibility and improves performance.

 Network modernization

Although strategic cloud adoption has quickened digital transformation, it has the potential to put additional strain on network infrastructure. Digital transformation is an undeniable reality of today’s business scene. By 2023, digitally transformed firms are expected to contribute $53.3 trillion to global GDP, accounting for more than half of the total. This transformation necessitates adaptive access and authentication, as well as a fundamental shift in controls closer to where they’re needed now. SASE will not only provide remote workers with office-like resilience and security, but it will also dramatically simplify WAN deployment. It provides a single point for centralized network management and the right bandwidth provision for every user, device, and application if implemented correctly.

Improved performance

SASE networks link users directly to resources and remove latency-inducing backhaul, rather than routing the network traffic through a data center. Administrators can also better manage service quality with SASE. IT capacity can also scale up and down in response to business demands using the SASE framework’s usage-based cloud service paradigm. Budgets are more predictable in terms of operating expenses. Furthermore, since they are no longer updating weak outdated network security systems, IT employees can spend more time with higher-level responsibilities.

Reduced operational difficulty

SASE allows businesses to integrate their IT network security stack into a cloud-based network security architecture, reducing the number of IT security products that a team must manage, maintain, and upgrade. As a result, the IT infrastructure becomes less complicated. SASE also is a single platform for IT network security that eliminates the need for various point solutions to be purchased and maintained. As a result, SASE can significantly reduce the requirement for IT personnel as well as operational expenditures. This was only the tip of the iceberg about SASE’s use cases. If you’d like more information on the subject, you can check out here:


To summarize, SASE was established to provide businesses with a way to safely deliver services over the internet and handle the challenges that come with it. As businesses build next-generation branch networks, SASE will become increasingly vital. Many corporate firms will begin with SD-WAN and gradually include SASE. Enterprises should invest in services that strike a balance between cost savings and the security needed to secure their users, data, and systems. SASE is the ideal way to establish that balance and make sure a business is ready for the future with its security and operational continuity.

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