Case Study: Large Water Supply and Treatment Company strengthens cyber security with NCC Group

Cyber Security Review for Utilities Sector

Large Water Supply and Treatment Company, a UK utility provider serving council areas and military bases from its headquarters in Bradford, needed a stronger cybersecurity posture to protect critical water services and reduce the risk of supply chain disruption, unauthorized access, and attacks on sensitive systems. NCC Group was brought in initially for penetration testing and broader security reviews to identify known and unknown vulnerabilities across the organization’s infrastructure and digital services.

NCC Group delivered a long-running program of penetration and security assessments covering infrastructure testing, code reviews, web and application testing, Azure, and threat modeling, alongside strategic and tactical guidance. The work helped the company establish a stable, consistently monitored security posture, improve resilience against third-party and nation-state threats, and validate its incident response through an “incident room” exercise to ensure procedures could be used effectively during a real attack.