What is a SOC?
A SOC (Security Operations Center) is a specialised department or service that monitors the digital security of an organisation 24/7. The SOC detects, analyses, and responds to cyber threats, data breaches, Malware, attacks, and other security incidents.
A SOC is the digital command centre for cybersecurity and incident response.
🎯 What does a SOC do?
A SOC monitors the networks, systems, applications, and OT environments of an organisation and performs the following core tasks:
- Monitoring of security events (via SIEM or EDR)
- Detection of suspicious activity or attacks
- Incident analysis and classification
- Incident response and coordination
- Reporting, logging, and forensic investigation
- Threat intelligence & improvement of security policy
🧱 Components of a SOC
| Component | Description |
|---|---|
| SIEM | Centralises and correlates logs from systems/networks |
| EDR / XDR | Endpoint monitoring with behavioural analysis and detection |
| SOC analysts | Tier 1 to 3 (detection, analysis, response, forensics) |
| Playbooks / runbooks | Standardised procedures for incident handling |
| Threat intelligence | Information on current threats (IOCs, TTPs) |
| Case management | System for tracking and documenting incidents |
🔐 SOC in the OT context
In OT environments (industrial automation):
- A SOC must collaborate with ICS/SCADA specialists
- Knowledge of IEC 62443, Purdue Model, Modbus, DNP3 is often essential
- Account must be taken of real-time processes and production risks
Sometimes the term OT SOC or vSOC (virtual SOC) is used specifically for industrial networks.
🔧 SOC vs. NOC
| SOC (Security) | NOC (Network Operations) |
|---|---|
| Detection of cyber threats | Monitoring of availability and performance |
| Incident response to attacks | Resolving technical issues (e.g. downtime) |
| Security focus | Network operations focus |
| Works with IT & CISO | Works with IT & infra management |
🏭 When is a SOC needed?
- When there are many security incidents or notifiable incidents
- When continuous monitoring is required (e.g. NIS2)
- For organisations with significant OT, remote access, or supply chain integrations
- For requirements arising from ISO 27001, BIO, or sector-specific standards
✅ Advantages of a SOC
- Faster detection and response to attacks
- Centralised overview of cyber threats
- Forensic evidence and incident history available
- Continuous improvement of your security posture
- Improved compliance with laws and standards
📌 In summary
A SOC is the beating heart of your Cybersecurity organisation. It monitors your digital environment, detects threats, and ensures swift and effective response to incidents — crucial in both IT and OT contexts.