The EU NIS2 Directive took effect in October 2024. Here's what it means for your network security architecture, incident response, and supply chain risk management.
The NIS2 Directive (EU 2022/2555) significantly expands the scope of EU cybersecurity regulation. It applies to "essential" and "important" entities across 18 sectors — including energy, transport, health, digital infrastructure, and ICT service management.
Key Network Security Requirements
- Risk analysis and security policies: Document your network security architecture, threat model, and risk treatment plan
- Incident handling: Detect, report (within 24 hours), and respond to significant incidents with defined escalation procedures
- Business continuity: Network redundancy, failover testing, and disaster recovery for critical communication paths
- Supply chain security: Assess and monitor the security posture of network equipment vendors and managed service providers
- Encryption: End-to-end encryption for sensitive communications; TLS 1.3 minimum for all management interfaces
What You Should Do Now
- Determine if your organisation falls under NIS2 scope (essential vs. important entity)
- Conduct a gap analysis against the directive's Annex requirements
- Implement network segmentation and monitoring if not already in place
- Establish a 24-hour incident notification process to your national CSIRT
- Review vendor contracts for security clauses and audit rights
Non-compliance penalties are significant: up to €10M or 2% of global turnover for essential entities. The time to act is now.