Automating NIS2 Incident Response: From Detection to CSIRT Reporting in Under 24 Hours

NIS2's incident reporting requirements are unforgiving. Article 23 mandates an early warning to your national CSIRT within 24 hours of becoming aware of a "significant incident." A full notification follows within 72 hours. A final report with root cause analysis is due within one month. Miss these deadlines and you face supervisory action — and for essential entities, potential fines up to €10 million.

What Constitutes a "Significant Incident"

NIS2 defines significance broadly. An incident is significant if it:

• Has caused or is capable of causing severe operational disruption or financial loss
• Has affected or is capable of affecting other natural or legal persons by causing considerable material or non-material damage

The implementing regulation (Commission Implementing Regulation 2024/2690) provides specific thresholds for digital infrastructure and service providers. For DNS providers, a 30-minute service disruption affecting over 1% of users qualifies. The thresholds vary by sector, but the principle is clear: detect fast, classify fast, report fast.

Building the Automated Pipeline

A NIS2-compliant incident response pipeline has five stages:

1. Detection Layer

Your SIEM must correlate events across all infrastructure layers. Configure detection rules for NIS2-specific scenarios:

• Unauthorized access to critical systems (IAM anomalies)
• Data exfiltration patterns (unusual outbound traffic volumes)
• Ransomware indicators (file encryption patterns, C2 communication)
• Supply chain compromise indicators (unexpected software updates, certificate changes)
• Service degradation exceeding NIS2 thresholds

2. Automated Classification

Once detected, the incident needs immediate classification against NIS2 criteria. Build a classification engine that evaluates: affected systems and their criticality tier, number of users impacted, whether personal data is involved (GDPR crossover), cross-border impact potential, and estimated recovery time.

3. Evidence Preservation

NIS2's final report requires root cause analysis. Your infrastructure must automatically preserve forensic evidence: network packet captures, system logs, memory dumps for affected hosts, and configuration snapshots. Store these in immutable, tamper-evident storage.

4. Reporting Automation

The 24-hour early warning should be semi-automated. Pre-populate the report template with incident classification data, affected systems, initial impact assessment, and contact details. Human review before submission, but the data gathering should be automatic.

5. Recovery Orchestration

Automate your recovery runbooks. Kubernetes-based infrastructure has an advantage here — pods can be restarted, nodes cordoned, and workloads rescheduled automatically. Infrastructure as Code ensures you can rebuild from a known-good state.

Kubernetes-Native Incident Response

If you run on Kubernetes (and for AI workloads, you likely do), your incident response benefits from platform capabilities:

• Falco for runtime threat detection — syscall monitoring, file integrity, network anomalies
• Network policies for automated containment — isolate compromised namespaces
• Audit logging with forwarding to SIEM — every API call recorded
• GitOps for recovery — rollback to last known good state via Git history

What Open Empower Delivers

We implement end-to-end NIS2 incident response infrastructure: detection, classification, evidence preservation, reporting automation, and recovery orchestration. Our platform engineering approach means these capabilities are built into your infrastructure fabric, not bolted on as afterthoughts.