NIS2 is the EU’s upgraded cybersecurity rulebook. It requires risk-based security measures (Article 21) and strict incident reporting timelines (Article 23). Greece has transposed NIS2 into national law (Law 5160/2024), so organizations in scope need to demonstrate both capability and evidence, not just good intentions. National Cybersecurity Authority (NCSA) of Greece.

This guide shows how Logstail helps you implement day-to-day controls and produce audit-ready evidence aligned with:

  • Article 21 — risk management measures (e.g., logging/monitoring, access control, MFA, vulnerability handling, effectiveness).

  • Article 23 — incident reporting deadlines (initial warning, notification, final report) and the need to track/report efficiently.

This post is practical guidance, not legal advice. Always map controls to your internal policies and the national competent authority’s instructions. DIRECTIVE (EU) 2022/2555 OF THE EUROPEAN PARLIAMENT

What Logstail gives you out of the box

  • Centralized telemetry: Windows (Security, PowerShell), Sysmon, Linux auditd, O365/Azure AD sign-ins, VPN/Firewall, Vulnerability scanners.

  • Lucene-searchable analytics in Discover/Search and panel-level filters in Dashboards.

  • Detections/Alerts with Slack/Email/Webhook actions.

  • Reporting to export PDF dashboards and saved searches as evidence for audits and Article 23 (Reporting obligations) notifications.

Control 1 — Prove monitoring is active

What this shows: You’re actually monitoring—continuously—and you can prove it.

How Logstail helps

  • Security module → Endpoints: View active/inactive agents per endpoint at a glance.

Agents2agents

  • Dashboards: “Reporting endpoints” KPI, list of agents, and events/timestamps.

agent dashboard

  • Alerts: Notify Slack/Email/Webhook when an agent stops sending logs or Logstail Agent service stopped from a specific endpoint (e.g., silent >15 minutes).

Alert idea (per endpoint)

  • Condition: Logstail Agent Service Stopped

  • Action: Slack/Email with: {{agent.name}}, {{agent.ip}}, {{reason}}, etc.

This is the “Logstail Agent Service Stopped” alert that triggered when the Logstail Agent Service in an endpoint stopped.

stoppedagent

mail

Why it maps to NIS2 (Art. 21(2)): Demonstrates effective monitoring and the ability to evaluate effectiveness by showing coverage and quickly highlighting gaps.

Track both signal and silence. Keep a saved search for Logstail Agent Service Stopped. Alert on silence, but also show a KPI for % endpoints reporting so you can prove effectiveness over time (Article 21(2)(f)). Bonus: tag lab/maintenance hosts to avoid noisy false alarms.

Control 2 — Access control governance (privileged changes)

Control 4 — Vulnerability handling & prioritization (KEV-aware exposure)

NIS2 mapping: Article 21(2) includes vulnerability handling and disclosure. Prioritize Known Exploited Vulnerabilities (KEV) on internet-exposed assets and track remediation time.

vuln

Don’t chase every CVE—gate your alert to kev:true AND asset.exposure:internet and track median days-open per service as a KPI. That’s the number the C-suite actually understands and it directly demonstrates effectiveness (Article 21(2)(e) + 21(2)(f)).

Control 5 — Incident reporting timers & evidence (24h / 72h / 30 days)

NIS2 mapping: Article 23 sets deadlines (initial warning, incident notification, final report). You need timers and an evidence pack to support timely reporting to the competent authority/CSIRT.

1) Detect → Classify → Start the NIS2 clocks

Why: Article 23(4)(a–d) demands strict timelines (24h/72h/30d).
How in Logstail:

  • Detection rules (Lucene): catch things that could be “significant incidents.”
  • Auto-classify: when severity/impact crosses your threshold, create a new case
  • Start timers: store timestamps on the case:

2) Route messages to the right channels with context

Why: Article 23(1–2) expects prompt communication to CSIRT and affected recipients.
How in Logstail:

  • Alert actions to Slack / Email / Webhook with due-stage and owner

  • Use dedicated channels: #sec-nis2-early-warning, #sec-nis2-72h, etc.

3) High-level reporting for the C-suite

Why: Execs don’t want log lines—they want risk deltas.
How in Logstail:

  • Executive Dashboard

  • Monthly PDF export

Start timers automatically when a case is created. Route 24h/72h/30d reminders to separate Slack channels so escalation is unmistakable (e.g., #nis2-24h-due). Store time, who acknowledged, and the reporting link in the case for an instant, audit-ready trail (Article 23(4)(a–d)).

Traceability at a glance (NIS2 ↔ Logstail controls)

  • Monitoring in place, effectiveness measured → Telemetry coverage & silent-host alerts → Article 21(2).

  • Access governance → Privileged account/group/role changes → Article 21(2).

  • Strong authentication & hygiene → MFA coverage + anomaly alerts → Article 21(2).

  • Vulnerability handling → KEV-aware exposure & remediation tracking → Article 21(2).

  • Timely incident notification → SLA timers & evidence packs → Article 23.

 

Conclusion

  • Train your team (Article 21(2)(g))
    Level up fast with the Logstail Academy NIS2 learning path and course. It walks through the directive and implementation steps with practitioner focus—perfect to pair with the detections and reporting workflows above.

  • Explain NIS2 to stakeholders
    Share our plain-English primer: “NIS2: what it means for your business and how to prepare.” It connects the legal text to real operational tasks (telemetry, alerts, risk, reporting) and is a solid pre-read for C-level reviews.

  • Assess your readiness (quick wins + gaps)
    Use the NIS2 Assessment to benchmark where you stand today and identify priority fixes. It’s a concise guide/checklist that maps to the directive’s requirements and speeds up planning for audits. There’s also a downloadable guide if you want a shareable PDF.

Ready to validate?

Contact Our Experts  or Sign Up for Free

 

0 0 votes
Article Rating