SASE: Secure Access Service Edge

SASE: Secure Access Service Edge

Simplify and secure access for your users with unified security and networking in one cloud-native solution. Bring your WAN and security services together, embedded in the UK’s most resilient network.

What is SASE?

SASE brings together application-aware connectivity (SD-WAN) and cloud-delivered security (SSE) into a single, integrated service. With BT, your network and security work as one - protecting people, data and applications wherever they operate.
Unified network performance connectivity

We combine SD-WAN with BT’s resilient UK infrastructure to prioritise your critical applications, on-premise or in the cloud.

  • Intelligent routing: automatically steers traffic over 5G, Fibre, or Broadband to minimise latency.
  • Operational efficiency: Automated deployment via the one business stack reduces manual configuration.
  • Single SLA: a single SLA and unified service management cover both connectivity and security.
Managed zero-trust and identity-driven security

We replace traditional VPNs with Zero Trust Network Access (ZTNA), granting access based on user identity and context.

  • VPN replacement: a faster, more secure hybrid-work experience without unnecessary backhaul.
  • Granular access control: limits users to the specific applications they need, reducing your attack surface.
  • Expert policy management: BT specialists manage and optimise policies as your organisation evolves
Converged threat prevention

We deliver cloud-based security services closer to your users and applications, helping you stay protected wherever traffic flows.

  • Real-time threat blocking: Instantly blocks malware, phishing, and malicious sites at the network edge.
  • Data Protection (DLP): advanced monitoring to prevent sensitive data leaks across cloud apps like M365.
  • Sovereign assurance: UK-resident logging and management to meet local regulatory standards.

Explore what our network advantage could mean for your business

BT is one of the only operators in the UK that can build an integrated smart network - combining fixed, mobile and wi-fi – with 5G at the heart. Find out what this could mean for your business below.


Built on BT infrastructure

We manage fibre, edge and core routing end to end, with network and security combined under one SLA. Direct cloud peering keeps critical applications fast and reliable.

Priority where it matters

Full control and unified performance across your network and security, with service levels that ensure predictable connectivity.

Assured performance

Traffic is prioritised from your devices to the SASE cloud node, avoiding public internet congestion for a smoother, more consistent experience.

Built on BT infrastructure

We manage fibre, edge and core routing end to end, with network and security combined under one SLA. Direct cloud peering keeps critical applications fast and reliable.

Priority where it matters

Full control and unified performance across your network and security, with service levels that ensure predictable connectivity.

Assured performance

Traffic is prioritised from your devices to the SASE cloud node, avoiding public internet congestion for a smoother, more consistent experience.

How BT Managed SASE can help your business

BT Managed SASE brings together secure connectivity, identity‑first access and intelligent threat protection, tailored to the needs of your industry.

End-to-end SASE managed by BT

From initial setup to day-to-day operations, we bring security, networking and automation together into one managed service - so your teams can stay focused on running the business.

The power of SASE: transforming cyber security in the digital age

The power of SASE: transforming cyber security in the digital age

As digital transformation accelerates, cyber security must keep pace. But can Secure Access Service Edge (SASE) truly be the game-changer in an organisation’s security landscape?

Learn more about SASE
SASE essentials: why SD-WAN is non-negotiable

SASE essentials: why SD-WAN is non-negotiable

As the SASE market evolves, questions have surfaced about what’s next for SD-WAN and whether it will remain a strategic technology. This expert deep dive reveals a long-term future for SD-WAN.

Learn more about SASE essentials
Protecting your hybrid workforce with Fortinet SD WAN

Protecting your hybrid workforce with Fortinet SD WAN

Discover how a managed Fortinet SD-WAN with built-in SASE can streamline security and operations.

Learn more about SASE

Why choose BT for SASE solutions

Always‑on security expertise

Round‑the‑clock monitoring and access to BT security experts when you need them.

Faster threat detection

We spot issues sooner by connecting insights across your network, users and devices.

Smooth, disruption‑free experience

We help you adopt Zero Trust with clear guidance and tools that keep your people working.

Built‑in compliance

Logs, policies and controls are managed and kept up to date, so staying compliant is simpler.

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