Zero Trust Architecture
Zscaler for Zero Trust access and internet security
Replace legacy network and perimeter-based security with a cloud-delivered model that enables secure, direct access to applications and the internet.
The Challenge
Traditional network security models create risk and complexity
VPN and perimeter-based security were designed for centralised environments.
Today, they introduce:
Broad network access
Traditional VPN models often provide users with wider network access than required, increasing exposure and limiting granular control.
Increased risk of lateral movement
Once inside the network, attackers can move between systems more easily if segmentation and identity-based controls are limited.
Complex infrastructure
Legacy network architectures require extensive management, maintenance, and backhauling, increasing operational complexity and cost.
Poor user experience
Traditional security approaches can introduce latency and friction by routing users through centralised network infrastructure.
Perimeter-based security no longer reflects how modern organisations operate. A Zero Trust approach enables secure, direct access to applications based on identity, context, and policy.
Deployment Architecture
Where Zscaler fits
Zscaler provides cloud-delivered security and access control. It enables:
Secure access to applications without VPN
Zscaler enables Zero Trust Network Access (ZTNA), providing secure, direct access to applications without extending network access through traditional VPNs.
Consistent internet security across users
Zscaler delivers cloud-based security controls that protect users wherever they work, across offices, remote locations, and devices.
Policy enforcement based on identity and context
Zscaler applies dynamic access policies using identity, device, location, and risk context to enable secure, least-privilege access.
Strategic Choice
Why we selected Zscaler
Our selection process focuses on platforms that don't just solve a single problem, but enhance the entire security ecosystem.
Enables true Zero Trust access
Zscaler verifies every user and access request based on identity, context, and policy rather than relying on network location or implicit trust.
Removes reliance on network-based security
Zscaler shifts security from the traditional perimeter to a user and application-centric model, reducing exposure and improving control.
Scales without additional infrastructure
Zscaler’s cloud-delivered architecture supports secure access at scale without the complexity of expanding traditional network infrastructure.
Provides consistent policy enforcement
Zscaler enables centralised security policies to be applied consistently across users, devices, locations, and applications.
Delivery and Support
How we deliver and support it
We ensure Zscaler is deployed as part of a coherent architecture.
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01
Architecture design aligned to Zero Trust
We map out your Zero Trust architecture. -
02
Implementation and migration from legacy models
We deploy Zscaler and configure it into your existing stack. -
03
Alignment with cloud, identity and data controls
We connect Zero Trust to cloud security and IAM. -
04
Ongoing co-managed support
We tune as your environment evolves. -
05
Service management and TAM
A named technical account manager keeps delivery aligned to outcomes. -
06
Health checks and continuous improvement
Regular reviews keep your Zero Trust architecture strong.
Frequently Asked Questions
What is Zscaler used for?
Zscaler provides cloud-delivered security and Zero Trust access, replacing VPN and traditional perimeter controls.
Does Zscaler replace VPN?
Yes. It enables secure access to applications without exposing the network.
How does Zscaler improve security?
By removing network-level trust and enforcing access based on identity and policy.
Is Zscaler difficult to implement?
It is typically implemented in phases, allowing a smooth transition from legacy models.
Will performance improve?
Yes. Direct-to-internet access improves performance and reduces latency.
How does Zscaler fit into Zero Trust?
It provides the access and security layer within a Zero Trust architecture.
What are the risks of not modernising network security?
Maintaining legacy models increases complexity, cost and exposure to modern threats.