You might have heard the term “SASE” more frequently. That’s not just industry noise. It reflects a real shift in how connectivity is designed, delivered, and consumed.
For a long time, networks were built around fixed locations – offices, data centres, and clearly defined perimeters. Today, that model no longer reflects reality. Users are distributed, applications are cloud-based, and data moves constantly between environments. SASE can overcome these modern-day challenges of connectivity and security working together.
What is SASE?
SASE (Secure Access Service Edge) is a cloud-delivered approach that combines networking and security into a single service. Instead of managing separate tools for connectivity and protection, SASE brings them together into one platform. This is why it’s often positioned as a move toward network as a service, where connectivity is delivered in the same way as modern SaaS applications – flexible, scalable, and centrally managed.
Why the shift is happening
The traditional model worked when everything sat behind a firewall. Today:
- Users work from anywhere
- Applications live in the cloud
- Traffic no longer flows through a single location
Trying to manage this with legacy infrastructure leads to fragmentation (multiple tools, inconsistent policies, and increasing complexity). SASE addresses this by creating a single framework that connects users to applications securely, wherever they are.
How SASE combines networking and security
One of the reasons SASE can feel confusing is the number of acronyms involved. At its core, SASE brings together several key technologies:
ZTNA (Zero Trust Network Access) providing controlled, identity-based access to applications instead of broad network access
SWG (Secure Web Gateway) filtering and protecting internet traffic to prevent threats reaching users
- CASB (Cloud Access Security Broker) giving visibility and control over how cloud applications are used
FWaaS (Firewall-as-a-Service) delivering firewall protection through the cloud rather than on-premise hardware
Individually, these tools already exist. What SASE does differently is combine them into a single, consistent service layer.
More than a technology trend
SASE reflects a change in how connectivity is consumed today. Organisations are increasingly looking for:
- Predictable, subscription-based models
- Reduced reliance on physical infrastructure
- Greater agility as needs change
This aligns closely with the broader move toward as-a-service delivery models across IT.
What this means in practice – the benefits
Moving to a SASE approach simplifies how connectivity and security are delivered. Instead of managing multiple tools and architectures, everything is consolidated into a single, cloud-delivered service, reducing complexity and making networks easier to manage.
Security also becomes more consistent. Rather than varying by location, the same policies are applied across users, devices, and applications wherever they are, helping reduce gaps and improve control. At the same time, SASE is designed for how organisations operate today. With users working from anywhere and applications in the cloud, connections are handled closer to the user, improving both performance and reliability. And because it’s delivered as a service, SASE is also easier to scale. New users, locations, or services can be added without reworking infrastructure, allowing the network to evolve alongside the business.
Finally, bringing networking and security together provides better visibility and alignment. With a clearer view of activity across the environment, organisations can make more informed decisions and maintain a stronger overall security posture.
If you’d like to learn more about SASE contact us and a member of our Connect team will be in touch.
