The Challenge
A professional services firm operating across multiple offices had accumulated a patchwork of security tools over several years. Firewall logs sat in one system, endpoint alerts in another, email security events in a third, and compliance documentation in spreadsheets. When a potential security incident occurred, the IT team spent hours manually correlating events across these disconnected tools before they could even determine whether the alert was genuine. Compliance audits were equally painful — producing evidence for ISO 27001 controls required days of manual compilation from multiple sources. The organisation needed a unified view of their security posture without replacing all existing infrastructure.
The Approach
We conducted a structured assessment and implementation programme:
- Tool Inventory: Catalogued all existing security tools, log sources, and compliance documentation across all office locations
- Integration Mapping: Designed log ingestion pipelines from firewalls, endpoints, Microsoft 365, and cloud services into a central platform
- Correlation Rules: Built detection rules mapping to specific ISO 27001 controls and NIS2 requirements
- GRC Integration: Connected security events directly to compliance evidence, automating the audit preparation process
- AI-Assisted Analysis: Implemented AI-powered event analysis to reduce false positives and prioritise genuine threats
The Solution
A unified security operations platform combining SIEM capabilities with GRC management, providing real-time threat detection alongside automated compliance evidence collection — all without replacing the firm's existing security investments.
Architecture
Ingestion Layer
Centralised log collection from firewalls, endpoints, Microsoft 365, email security, and cloud services
Correlation Engine
Rule-based and AI-assisted event correlation mapping to ISO 27001 and NIS2 controls
GRC Module
Automated compliance evidence collection with audit-ready reporting
Operations Dashboard
Real-time unified view of security posture, active threats, and compliance status
Results
- Mean time to detect security incidents reduced from hours to minutes
- ISO 27001 audit preparation time reduced from weeks to days
- False positive rate reduced by approximately 60% through AI-assisted analysis
- Single dashboard replaced 5 separate security tool interfaces
- Compliance evidence generation automated for 80% of required controls
- NIS2 readiness achieved without additional headcount
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