One identity, access proven every time.

The challenge

A defence sector business needed to be sure of something deceptively simple: that the right people, on the right devices, were the only ones reaching its systems. In a sector where that assurance is not optional, the old model of trusting anything inside the network boundary was no longer good enough.

Access had grown up platform by platform, each with its own way of letting people in. That kind of sprawl is hard to reason about and harder to prove. The business wanted a single, centralised way of deciding who gets access to what, applied consistently everywhere, with the evidence to show it holds.

Our approach

We built the access model around a Zero Trust principle: never assume, always verify. Authorisation was centralised on Entra ID, so there is one place where identity is established and one consistent set of rules, rather than a patchwork that varies by system.

Single sign on tied the platforms together, so people authenticate once against controls that are actually enforced rather than juggling logins that invite shortcuts. We locked down devices so only known, trusted machines could connect, and layered Conditional Access policies across every platform, so each request is judged on who, what, and where before it is allowed through.

The outcome

The business now runs on a Zero Trust model with full single sign on, centralised on Entra ID and applied across all of its platforms. Access is decided in one place, enforced consistently, and granted only to known users on locked down devices that meet the Conditional Access rules.

The result is both tighter and simpler. People get a smoother way in through single sign on, while the business gets a far stronger, far more provable grip on exactly who can reach what, which is precisely the standard a defence environment demands.