Is Zero Trust a product you can buy?

No. It is an architecture. Identity providers, conditional access, device management, network segmentation, privileged access management and monitoring all contribute components, but no single purchase delivers it. Treating it as a procurement exercise instead of a design principle is a common way these programmes stall.

Does Zero Trust mean removing our firewalls?

No. Perimeter controls still limit blast radius and segment workloads. What changes is that they are no longer sufficient on their own, because staff, applications and data now sit largely outside the perimeter and a valid credential will pass straight through it.

Where should we start with Zero Trust?

Identity, and finish it before moving on. A single authoritative identity provider, phishing-resistant multi-factor authentication with no exemptions, conditional access based on risk and device, time-bound instead of standing privilege, and access reviews against actual use. That stage carries much of the benefit.

Will Zero Trust make life harder for staff?

Done badly, yes, and authentication fatigue leads users to look for workarounds. Done well, risk-based policies mean most access is frictionless and only unusual requests attract extra checks. If your users are being challenged constantly, the policies are probably too blunt rather than the model being wrong.

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What is Zero Trust security, and why traditional perimeter defence no longer works

Zero Trust explained as a design principle: verify explicitly, least privilege, assume breach, and the realistic order to implement it in.

20th October 2026

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What is Zero Trust security, and why traditional perimeter defence no longer works

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What is Zero Trust security, and why traditional perimeter defence no longer works

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What is Zero Trust security, and why traditional perimeter defence no longer works

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What is Zero Trust security, and why traditional perimeter defence no longer works

What is Endpoint Detection and Response (EDR), and do you need it?

DevOps change management in regulated firms: how to release faster without losing control

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