Case Studies

Preparing a UK local authority for secure AI adoption with Microsoft Copilot

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The Client

A large UK county council responsible for delivering a wide range of public services to more than 700,000 residents. The organisation manages significant volumes of highly sensitive operational and citizen data across multiple departments and systems.

The Challenge

The council faced growing complexity in managing data classification, labelling, and retention across the organisation. With increasing pressure to deploy Microsoft Copilot, IT leadership had concerns about whether the existing security posture was sufficient to support AI safely and compliantly.

Securing organisational buy-in to invest in Microsoft 365 E5 licences was critical, as leadership needed clear assurance that the right controls, tooling, and governance would be in place to protect sensitive data before enabling Copilot at scale.

Key Challenges:

  • Data governance: Managing complex classification, labelling, and retention requirements
  • AI readiness: Ensuring the environment was secure enough to support Copilot
  • Security posture: Addressing gaps before expanding AI and automation capabilities
  • Stakeholder alignment: Securing leadership approval and organisational buy-in
  • Scale: Supporting thousands of users across a diverse public sector environment

The Solution

Working closely with Microsoft UK, CWSI delivered a tailored Data Security engagement through the Microsoft Cyber Security Investment (CSI) programme to support the council’s AI readiness journey.

The engagement provided a comprehensive assessment of the existing security posture, identified key risks, and delivered a detailed roadmap to prepare the environment for secure Copilot adoption. CWSI demonstrated the enhanced capabilities of Microsoft Purview and clearly articulated the benefits of transitioning from Microsoft 365 E3 to E5

Key elements included:

  • Data Security engagement delivered via the CSI programme
  • Assessment of data protection, compliance, and governance controls
  • Identification of risks impacting secure Copilot deployment
  • Detailed roadmap for AI readiness and security uplift
  • Strategic guidance to support transition to Microsoft 365 E5

The Result

The engagement provided the clarity and confidence required to move forward with AI adoption in a secure and controlled manner. 

Key Outcomes:

  • Approved uplift of 4,500 users to Microsoft 365 E5
  • Purchase of 4,500 Microsoft Copilot licences
  • Clear roadmap to deploy Copilot securely across the organisation
  • Approval for FastTrack funding to accelerate Microsoft Purview adoption
  • Strengthened security and data governance foundation for future innovation

Why CWSI

CWSI’s deep expertise in Microsoft Security and AI readiness enabled the council to balance innovation with compliance and risk management. By combining practical, hands-on enablement with long-term strategic planning, CWSI helped the organisation make measurable progress without overwhelming internal teams – building confidence at both technical and leadership levels.

Client Testimonial

CWSI have been a pleasure to work with over the last six months helping us prepare for the rollout of Microsoft Copilot with confidence. Their approach blends practical sessions that move us forward on our security journey with longer-term strategy, allowing us to make continuous, demonstrable improvements without being overwhelmed. This keeps engineers happy, senior management happy, and gives me confidence that we’re working with the right partner. I would, and have strongly recommended CWSI to other Local Authorities.

Head of IT, UK Local Authority