In the early days of business computing, life was simple. Companies housed their servers in a room down the corridor, employees sat at desks connected by cables, and the IT department knew exactly where everything was and who was using it.
Fast forward to today, and the picture couldn’t be more different. Staff work from home, remotely or at a client site. Applications live in the cloud rather than on company servers. Data flows everywhere, across multiple devices and networks. This transformation may have brought benefits for productivity and flexibility, but it’s also created security issues for businesses trying to protect their digital assets.
Traditional security approaches, built for a world where everything happened inside four walls, simply can’t keep up. Enter SAS, a solution designed for our dispersed, cloud-first world. But what exactly is SASE, and why should your business care about it?
SASE Definition: What is SASE?
SASE, pronounced “sassy”, stands for Secure Access Service Edge. The SASE definition describes it as a framework that combines network security functions with wide area networking capabilities, all delivered as a single cloud-based service. Think of it as bringing together your security tools and networking infrastructure into one integrated platform, rather than managing them as separate, disconnected systems.
The term was coined by the technology research firm Gartner in 2019, but it wasn’t created in a vacuum. SASE emerged as a response to the fundamental changes in how we work and where our data lives. When employees, applications, and data are scattered across different locations and cloud services, traditional security models that assume everything happens within a corporate network perimeter simply don’t work anymore.
Why did SASE come about?
To understand why SASE security matters, it helps to look at what’s changed in recent years. Previously, most business applications ran on servers in the office, and employees accessed them from their desk computers. Security was relatively straightforward; you built a strong perimeter around your network, checked everything coming in and going out, and threats were kept at bay.
When cloud computing arrived, everything changed. Companies started using Software as a Service (SaaS) applications such as Microsoft 365, Salesforce, and others. Data moved from local servers to cloud data centres. Mobile working became the norm rather than the exception. Suddenly, that carefully constructed security perimeter had holes that could be exploited.
Organisations responded by layering on more security tools, VPNs for business, cloud access security brokers, separate firewalls for different purposes, and various monitoring systems. Before long, IT departments were juggling a dozen different security products, each with its own management console, policies, and quirks. It was complex, expensive, and often left gaps that cyber criminals could exploit.
SASE offers a better way forward by bringing everything together.
How does SASE work?
SASE architecture combines two main components, networking and security. On the networking side, it includes technologies like Software Defined Wide Area Networks (SD-WAN), which efficiently route traffic across different networks and locations. On the security side, it bundles together multiple protection layers, including firewalls, secure web gateways, data loss prevention, and more.
What makes SASE different is that all these functions are delivered from the cloud, close to where users and resources are. Rather than routing all traffic back through a central office to be checked and secured (which is slower and less efficient), SASE inspects and protects data at the “edge” of the network, wherever users happen to be connecting from.
Imagine your employee working from a client site in Manchester, accessing company files stored in Microsoft’s cloud. With SASE, security checks happen right there, close to both the user and the application, rather than taking a long detour through your office in Birmingham. This means better performance, enhanced security, and a simpler infrastructure to manage.
The key benefits of SASE
The beauty of a SASE solution lies in its ability to simplify while strengthening security. For businesses, this translates into several practical advantages.
| Simplified management | Instead of logging into multiple different systems to set security policies, update configurations, or investigate issues, IT teams work from a single unified platform. This not only saves time but reduces the risk of mistakes or overlooked vulnerabilities. |
| Enhanced security | This comes from having consistent protection applied everywhere. Whether someone’s working from the office, home, or a hotel room abroad, they get the same level of security. There are no gaps where data might slip through unprotected. |
| Better performance | These results come from processing traffic close to where it originates, rather than taking circuitous routes through central bottlenecks. Users enjoy faster access to applications and websites, whilst IT benefits from more efficient use of network capacity. |
| Cost savings | These emerge from consolidating multiple security and networking products into a single service. There’s less hardware to buy and maintain, fewer licences to manage, and reduced complexity in day-to-day operations. |
| Scalability | This becomes straightforward when everything is cloud-based. Need to add a new office or support sudden remote working for fifty people? With SASE, it’s largely a configuration change rather than a major infrastructure project. |
Is SASE right for your business?
SASE isn’t necessarily for everyone, at least not yet. If you’re a small business with everyone working from one location, using minimal cloud services, the benefits may not justify the transition effort. Traditional security approaches might still serve you well.
However, if your business has embraced cloud applications, supports remote or hybrid working, has multiple office locations, or is planning to grow, SASE deserves serious consideration. It’s particularly valuable for businesses tired of managing complexity or concerned about security gaps in their current setup.
The transition to SASE architecture doesn’t have to happen overnight. Many businesses adopt SASE gradually, starting with specific use cases or locations before expanding. This phased approach allows you to learn and adjust whilst minimising disruption.
Getting started with SASE
If SASE sounds like it could benefit your business, the first step is understanding your current situation. What security tools are you using? Where are your applications hosted? How do employees access company resources? Where are the pain points in your existing setup?
Armed with this understanding, you can evaluate different SASE providers and solutions. The market has evolved significantly since 2019, with numerous vendors offering SASE platforms. The right choice depends on your specific needs, existing infrastructure, and plans.
How Mintivo can help
Navigating the world of SASE security can feel daunting, particularly for smaller organisations without large IT teams. At Mintivo, we specialise in helping businesses like yours understand and implement modern security solutions that work.
We can assess your current infrastructure, identify opportunities where SASE could benefit your business, and guide you through the transition process. Whether you’re just starting to explore SASE or ready to move forward with implementation, we’re here to help you every step of the way.
The world of work has changed dramatically, and security needs to change with it. SASE represents a smarter approach for our cloud-first, work-from-anywhere reality. If you’d like to learn more about how SASE could help protect and streamline your business, please get in touch.
