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Healthcare
Upgrading legacy ADFS to a secure, supported environment while ensuring zero downtime for critical systems
How identity infrastructure was modernised to improve authentication and resilience
Zero-Disruption Upgrade
Stronger Identity Security
Future-Ready Infrastructure
The Customer
Healthcare
Client:
Large - Enterprise
Size:
United Kingdom
Geography:
The Challenge
A large NHS acute and community healthcare trust in London required a major upgrade to its Active Directory Federation Services (ADFS) environment. Key objectives included:
Updating ageing ADFS servers to a modern, supported version
Improving authentication reliability across clinical and administrative systems
Ensuring secure identity federation and multi-factor authentication
Reducing dependency on legacy infrastructure
Aligning identity services with modern digital-first NHS strategies
Because ADFS supports critical patient care and administrative applications, the upgrade had to be zero-downtime, fully governed, and technically validated, with careful testing to ensure continuity across both clinical and corporate systems.
Key Activities
ADFS Upgrade Framework
Isolated Environment Testing
Controlled Production Upgrade
Documentation & Governance
Technologies
ADFS (2012 R2 → modern supported version)
SafeNet MFA
Web Application Proxy
DNS & certificate services
Active Directory
The Solution
Venture 1 delivered a safe, validated, and fully governed ADFS upgrade that provided:
Modern, supported identity infrastructure
Increased resilience and security for authentication
Improved reliability for critical clinical and administrative systems
A clear pathway to future Entra ID adoption
Benefits & Results Derived
Reduced Risk – Legacy, unsupported systems replaced with fully supported infrastructure
Improved Authentication Reliability – Critical staff sign-ins became more consistent and secure
Digital Alignment – Identity services aligned with modern NHS digital-first strategies
Documented Upgrade Process – Clear, repeatable procedures for future cycles
Zero Downtime – No disruption to clinical or administrative systems during the upgrade