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Secure Access Service Edge (SASE)

Resources to help you understand the benefits, use cases, and essential elements of a SASE architecture.

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Introduction to SASE

Getting started with SASE

SASE empowers enterprises with improved agility, consistent network performance, enhanced visibility, fine-grained control across diverse IT landscapes, and numerous other benefits.

SASE and Zero Trust

SASE and Zero Trust: Exploring Enterprise Security Strategies

Historically, most organizations have used a hub-and-spoke network to connect users, sites, and apps, with firewalls and VPNs for security and access. But when embracing remote work and cloud apps, the need to secure an ever-expanding network leads to increased costs, heightened risk, greater complexity, and more. That's why organizations are increasingly turning to SASE and zero trust.

 

Read the blog

5 Predictions for Zero Trust and SASE in 2025: What’s Next?

After years of struggling with traditional firewalls and VPNs, most organizations will prioritize ZTNA, with growing interest in SASE and identity-driven security.
 

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Core Components of SASE

Exploring the elements of SASE

By converging wide area network capabilities and core security functions, all delivered from the cloud, SASE enables teams to centrally manage security and connectivity.

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What Is a Software-Defined Wide Area Network (SD-WAN)?

SD-WAN optimizes and secures network connectivity by dynamically routing traffic across multiple links based on performance, cost, and policies.

What Is a Secure Web Gateway (SWG)?

SWG protects organizations by filtering web traffic, blocking threats like malware, enforcing policies, and ensuring secure internet access.

What Is Zero Trust Network Access (ZTNA)?

ZTNA enforces secure remote access by verifying user identity and device compliance, granting access to specific apps without exposing the entire network.

What Is a Cloud Access Security Broker (CASB)?

CASB monitors, secures, and manages cloud apps by enforcing policies, protecting data, enabling compliance, and blocking threats across platforms.

What Is Firewall as a Service (FWaaS)?

FWaaS provides cloud-based firewall protection, securing networks by filtering traffic, blocking threats, and enabling scalable security management.

SASE Architecture and Deployment

Realizing the full promise of SASE

Zero trust is part of the SASE framework, but not all SASE is zero trust. Traditional SD-WAN architecture, built on network technology that extends trust between locations, inherits the risk, complexity, and attack surface of that underlying network.

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Blog

Introducing Zero Trust SASE

Fully integrated with the industry-leading SSE platform, Zero Trust SD-WAN provides secure zero trust networking without overlay routing, additional firewall hardware, or inconsistent policies.

White paper

Why Zero Trust SASE is the Path to Secure Network Transformation

SD-WAN alone can't fix flat networks. True transformation needs SASE built on a zero trust architecture that extends across users, workloads, SD-WAN, and IoT/OT.

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Networking and Security Made Simple with Zero Trust SASE

By 2026, 60% of new SD-WAN purchases will be integrated into a single-vendor SASE offering (Gartner). Learn more about the only SASE platform built on zero trust.

Use Cases

Making SASE work for your operations

According to Enterprise Strategy Group (ESG), organizations’ top three SASE use cases are aligning network and security policies, reducing or eliminating the internet attack surface, and improving remote user security.

Making SASE work for your operations

EBook

4 Requirements for a Zero Trust Branch

Business leaders want a café-like experience for their users and IT, with straightforward, secure, high-performance app connectivity. Start with these four key steps.

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Blog

Use SASE to Simplify Your Security Tools

With a centralized, global view of all user activity, IT can see “what, where, and who” in real time to help them find and stop threats in the noise.

Blog

Exceptional Customer Experiences Begin at Home

Follow the deployment of a world-class SASE solution that delivered powerful security and great user experiences, with Colt Technology Services EVP Ash Surti.

SASE Comparisons

Exploring how SASE stacks up

SASE is one among many contrasting and, often, interrelated terms in cybersecurity. Browse these quick primers to help get the vocabulary straight.

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Blog

SASE vs. Zero Trust: What's the Difference?

SASE and zero trust are overlapping but distinct. You can roll out zero trust without SASE, but you can’t build a robust SASE framework without elements of zero trust.

White paper

SASE or SSE - The Different Pathways to Zero Trust

Where SASE is a holistic framework of security and network services, security service edge (SSE) that may not be ready to overhaul both at once.

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SASE vs. VPN: Which Is Better for Secure Remote Work?

While VPNs rely on encrypted tunnels to secure network traffic, SASE provides unified, cloud native security and network access tailored to user identity and location.

Blog

VPN vs. ZTNA: Which is Better for Secure Remote Access?

Both primary means of protecting users and data, VPNs and ZTNA differ significantly in security, management, scalability, performance, and user experience.

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SD-WAN, SSE, SASE: Which Solution Fits Your Business Needs?

Today’s digital landscape requires secure, efficient, and scalable network solutions. As you evaluate your options, focus on whether they fit your evolving needs.

Zero Trust Essentials

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