Cloud Security Hardening and Centralised Threat Monitoring for Clinisupplies ltd

The challenge

Our healthcare client was increasing its reliance on cloud services to support business and operational needs. As usage expanded, so did the organisation’s attack surface across identity, email, endpoints, data and cloud workloads.

Security controls had developed over time but were not yet operating as a single, layered model aligned to the organisation’s cloud trajectory. Visibility was also fragmented across cloud and on-premise systems, making it harder to detect and investigate threats quickly, and increasing risk around misconfiguration, credential compromise and inappropriate access to sensitive data.

The solution

As the contracted MSP and responsible for security and infrastructure, we discussed the client’s cloud dependency, growth plans and key risks, then designed a layered security approach focused on prevention, detection and response.

We strengthened governance (ISO 27001) and configuration practices to reduce exposure as cloud adoption continued, and we improved identity and access controls (RBAC, SSO, PAM, Lifecycle mgmt., ABAC and least privilege rights so access to systems and data was more consistently managed.

To bring monitoring into a single operational view, we implemented our preferred SIEM, Microsoft Sentinel and integrated it with the client’s cloud services and on-premise infrastructure. This consolidated the logs capture and threat signals, enabling improved correlation across identity, devices and cloud activity, and supporting a more repeatable incident investigation process.

The results

The client moved to a more resilient cloud security posture aligned to ongoing adoption, with clearer control maturity and reduced exposure risk.

With centralised monitoring in place, detection and investigation became more consistent and actionable, strengthening assurance around the security of sensitive healthcare information and supporting safer scale-up of cloud services.

With centralised monitoring in place through Microsoft Sentinel, the organisation addressed its most significant cloud-era risks including email and identity compromise, privileged access sprawl and cloud misconfiguration exposure. Critical log sources across identity, email, endpoints, infrastructure, data and cloud workloads were onboarded into a unified SIEM view, enabling cross-correlation of threat signals that had not previously been possible. Through structured detection rule tuning and governance improvements, low-value alert noise was reduced by approximately 50%, Secure Score and overall control maturity improved measurably, and high-risk configuration findings were significantly lowered. Detection shifted to near real-time visibility, while incident response times improved through defined severity models, documented runbooks and clear escalation pathways. Monitoring and response are delivered by our security operations team under agreed SLAs, providing consistent triage, containment guidance and executive-level reporting - strengthening assurance around sensitive healthcare information while supporting continued cloud expansion with greater confidence and control.