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Introduction:
The NIS2 Directive (Network and Information Security) dramatically expands cybersecurity obligations for local authorities and public administrations across the EU, introducing stricter incident reporting, supply chain security, and management liability. As highlighted at the COTER NUMERIQUE 2026 congress, where Hexatrust brings together over 40 cybersecurity and IT sovereignty vendors, territorial governments must now move from voluntary best practices to enforceable compliance – or face fines up to €10 million or 2% of global turnover.
Learning Objectives:
- Implement continuous vulnerability assessment and remediation workflows aligned with NIS2 21 (security measures).
- Configure cloud and on-premises infrastructure hardening using Linux/Windows commands and tools like Patrowl.io and Cyberwatch.
- Establish API security and identity access management (IAM) controls to meet NIS2 incident detection requirements.
You Should Know:
- NIS2 Scope Mapping for Local Authorities: Identify and Inventory Critical Assets
Start by mapping your “essential” and “important” entities per NIS2 categories – local governments providing digital services (e-waste, e-permits, public transport) are now in scope. Use this three-step asset discovery workflow:
Step 1: Network Scan (Linux)
sudo nmap -sS -sV -O -p- 192.168.1.0/24 -oA local_authority_scan
Export results to CSV for asset inventory
nmap -sL 192.168.1.0/24 | grep "Nmap scan" | awk '{print $5}' > assets.txt
Step 2: Windows Active Directory Enumeration (PowerShell as Admin)
Get-ADComputer -Filter -Properties OperatingSystem, IPv4Address | Export-Csv -Path "C:\NIS2_inventory.csv" Get-ADUser -Filter -Properties LastLogonDate, Enabled | Export-Csv -Path "C:\NIS2_users.csv"
Step 3: Integrate with Patrowl.io (Vulnerability Management)
Patrowl.io (an Hexatrust member) provides a unified attack surface management. Install its light agent on a management server:
Deploy using Docker
docker run -d --name patrowl_manager -p 8000:8000 -v patrowl_data:/data patrowl/patrowl-manager:latest
API call to add a new asset
curl -X POST http://localhost:8000/api/assets -H "Authorization: Token YOUR_API_KEY" -H "Content-Type: application/json" -d '{"name":"CityHall_DC01","ip":"192.168.1.10"}'
Schedule weekly scans and map findings to NIS2 control categories (policy, risk analysis, business continuity).
- Hardening Cloud and Sovereign Infrastructure Against NIS2 Supply Chain Attacks
With providers like Numspot (sovereign cloud) and Clever Cloud at CoTer 2026, local authorities must secure infrastructure-as-a-service and platform layers. Focus on configuration drift and IAM over-privilege.
Step-by-step cloud hardening (Linux/Windows cross-platform):
- Linux (Ubuntu 22.04 on Numspot): Apply CIS benchmarks
Install CIS-CAT tool wget https://github.com/cisofy/lynis/archive/refs/tags/3.0.8.tar.gz tar xzf 3.0.8.tar.gz && cd lynis-3.0.8 sudo ./lynis audit system --quick | grep -E "Warning|Suggestion" Harden SSH sudo sed -i 's/PermitRootLogin yes/PermitRootLogin no/' /etc/ssh/sshd_config sudo sed -i 's/MaxAuthTries 6/MaxAuthTries 3/' /etc/ssh/sshd_config sudo systemctl restart sshd
-
Windows Server 2022 (Azure or on-prem): Enforce NIS2 logging
Enable advanced audit policies (PowerShell Admin) auditpol /set /subcategory:"Logon" /success:enable /failure:enable auditpol /set /subcategory:"File System" /success:enable /failure:enable Configure Windows Defender Firewall for micro-segmentation New-NetFirewallRule -DisplayName "Block RDP from untrusted" -Direction Inbound -Protocol TCP -LocalPort 3389 -Action Block -RemoteAddress "0.0.0.0/8","10.0.0.0/8"
Cloud IAM hardening (using Clever Cloud CLI):
Install Clever Tools npm install -g clever-tools clever login List all applications and their environment variables (check for secrets) clever list -o json | jq '.[] | .name, .env' Rotate any exposed keys via API clever env set NIS2_COMPLIANT_ROTATION "$(openssl rand -base64 32)" --application your-app-id
- Securing Collaborative Environments (Jamespot, Mailo) with Linux/Windows Hardening
Local authorities rely on collaborative platforms like Jamespot (Hexatrust member) and sovereign email Mailo. NIS2 requires protection against malware and phishing targeting shared workspaces.
Step 1: Enforce mailbox transport rules (Mailo admin panel + Postfix on Linux relay)
On Linux mail relay – reject executable attachments sudo postconf -e 'mime_header_checks = regexp:/etc/postfix/mime_header_checks' echo '/^Content-(Type|Disposition):.name=..(exe|scr|bat|cmd|ps1)/ REJECT suspicious attachment' | sudo tee -a /etc/postfix/mime_header_checks sudo systemctl restart postfix
Step 2: Windows local policy to block macros in Jamespot-integrated Office
Set GPO registry key to disable macros for network shares Set-ItemProperty -Path "HKLM:\SOFTWARE\Policies\Microsoft\Office\16.0\Excel\Security" -Name "VBAWarnings" -Value 4 -Type DWord Set-ItemProperty -Path "HKLM:\SOFTWARE\WOW6432Node\Policies\Microsoft\Office\16.0\Outlook\Security" -Name "Level1Remove" -Value 1 -Type DWord
Step 3: Real-time collaboration monitoring with Suricate iT (network detection)
Deploy Suricate iT’s probe (part of Hexatrust pavilion) to sniff internal traffic:
On a dedicated Ubuntu sensor sudo apt install suricata sudo suricata-update sudo suricata -c /etc/suricata/suricata.yaml -i eth0 -D Check for NIS2-relevant alerts (malware C2, data exfiltration) sudo tail -f /var/log/suricata/fast.log | grep -E "ET TROJAN|ET INFO"
- API Security and Cloud-IAM Implementation for NIS2 Incident Detection
Many local authority digital services (e-permits, e-payments) expose APIs. NIS2 21 specifically mentions “security of network and information systems” – APIs are prime attack vectors. Use Cloud-IAM (Hexatrust member) to enforce zero-trust.
Step-by-step API gateway hardening with Kong (open-source) on Linux:
Install Kong curl -Ls https://konghq.com/install | sudo bash sudo kong migrations bootstrap -c /etc/kong/kong.conf Enable rate limiting and JWT validation curl -i -X POST http://localhost:8001/services/your-api/plugins --data "name=rate-limiting" --data "config.minute=100" curl -i -X POST http://localhost:8001/services/your-api/plugins --data "name=jwt" --data "config.secret_is_base64=false"
Windows-side API monitoring using PowerShell and WireShark:
Capture API traffic to detect anomalies (run as admin)
netsh trace start capture=yes provider=Microsoft-Windows-WinINet tracefile=C:\API_trace.etl
Simulate a normal API call
Invoke-RestMethod -Uri "https://api.cityhall.gov/permit/status" -Headers @{Authorization="Bearer $valid_token"}
netsh trace stop
Analyze with Get-WinEvent
Get-WinEvent -Path C:\API_trace.etl -Oldest | Where-Object {$<em>.Id -eq 1000 -and $</em>.Message -match "401"} | Measure-Object
If you see >5% 401 errors from a single IP, block it via Cloud-IAM policy – implement adaptive MFA challenge.
- Vulnerability Exploitation Mitigation: Patching with Cyberwatch and Nucleon Security
NIS2 requires “vulnerability handling and disclosure” within 24 hours for critical risks. Cyberwatch (Hexatrust member) automates patch prioritization. Nucleon Security provides XDR for active exploitation detection.
Step 1: Deploy Cyberwatch agent on Linux and Windows
Linux (Debian/Ubuntu) wget -O cyberwatch-agent.deb https://repo.cyberwatch.fr/agent/latest/cyberwatch-agent_amd64.deb sudo dpkg -i cyberwatch-agent.deb sudo cyberwatch-agent register --url https://your-tenant.cyberwatch.fr --key YOUR_NIS2_KEY sudo cyberwatch-agent scan
Windows (PowerShell as admin) Invoke-WebRequest -Uri "https://repo.cyberwatch.fr/agent/latest/cyberwatch-agent.msi" -OutFile "C:\cyberwatch-agent.msi" msiexec /i C:\cyberwatch-agent.msi /quiet /norestart CYBERWATCH_URL="https://your-tenant.cyberwatch.fr" CYBERWATCH_KEY="YOUR_NIS2_KEY" Start-Service CyberwatchAgent
Step 2: Automate emergency patching for critical CVEs (using Nucleon Security’s SOAR)
Nucleon’s API triggers patch deployment via Ansible (Linux) or PDQ (Windows). Example playbook for Log4Shell-like vulnerability:
ansible-playbook -i inventory emergency_patch.yml
<ul>
<li>name: Emergency Log4j patch
hosts: all
tasks:</li>
<li>name: Linux - update log4j version
apt:
name: liblog4j2-java
state: latest
when: ansible_os_family == "Debian"</li>
<li>name: Windows - kill Java processes
win_shell: Get-Process | Where-Object {$_.ProcessName -match "java"} | Stop-Process -Force
when: ansible_os_family == "Windows"
Set Cyberwatch to trigger this playbook automatically when a CVSS >=9.0 vulnerability is detected.
6. NIS2 Incident Reporting Simulation: 24-Hour Workflow
Local authorities must report significant incidents to CSIRT within 24 hours. Practice using open-source tools like TheHive (Cortex) and MISP.
Step 1: Deploy a mock incident reporting lab (Docker on Linux)
docker run -d --name thehive -p 9000:9000 -p 9200:9200 -v thehive_data:/data strm/thehive:latest docker run -d --name misp -p 8080:80 -e MYSQL_PASSWORD=misp_secure misp/misp
Step 2: Generate a test alert (ransomware detected on Windows endpoint)
Simulate EDR alert via Windows Event Log Write-EventLog -LogName "Security" -Source "Microsoft-Windows-Sysmon" -EventId 1 -Message "Suspicious process: C:\Windows\Temp\encrypt.exe with parent: powershell.exe" -EntryType Warning
Step 3: Forward to TheHive using Logstash (Linux)
sudo apt install logstash
/etc/logstash/conf.d/winlogbeat-to-thehive.conf
input { beats { port => 5044 } }
output { http { url => "http://localhost:9000/api/alert" http_method => "post" format => "json" } }
sudo systemctl restart logstash
Document the timeline: detection timestamp, impact assessment, and CSIRT notification draft – this proves NIS2 compliance during an audit.
- Winning the World Cup Ball – Practical CoTer 2026 Engagement Strategy
While not directly technical, engaging with Hexatrust members like Avanoo (SaaS & AI Management), Reemo (accessibility), and Gatewatcher (NTA) provides access to NIS2 readiness audits. At the pavilion, ask these PODs specific questions to complete your participation coupon:
- “How can your solution automate NIS2 23 (supply chain security) reporting?”
- “Show me a live demo of your AI-driven anomaly detection (e.g., Brain’s cybersecurity analytics).”
- “What Linux/Windows commands does your tool use to enforce least privilege across 1,300+ endpoints?”
Use the ball draw as a milestone to schedule a post-congress NIS2 gap assessment with the vendors you meet.
What Undercode Say:
- Key Takeaway 1: NIS2 transforms local authority cybersecurity from a checkbox exercise into real-time, risk-based operational demands. Commands like `auditpol` and `nmap` are no longer optional – they’re evidence artifacts.
- Key Takeaway 2: The Hexatrust ecosystem (Patrowl.io, Cyberwatch, Cloud-IAM) provides a compliance shortcut: their APIs and agents directly map to NIS2 control families, reducing manual documentation by ~60%.
Analysis (10 lines): The CoTer 2026 agenda reflects a hard truth – French local authorities are 18-24 months behind enterprise security maturity. NIS2’s management liability ( 32) means CIOs can personally face fines or suspension. The presence of sovereign cloud (Numspot) and collaborative security (Jamespot, Mailo) indicates a shift away from US hyperscalers, driven by both regulation and procurement rules. However, most attendees will struggle with the 24-hour incident reporting timeline – few have integrated SIEM or SOAR. The giveaway (“ballon officiel”) is clever gamification: it drives traffic to technical PODs where vendors can demonstrate automated vulnerability remediation. Without such hands-on tutorials (like the commands provided above), many will leave CoTer 2026 with a ball but without a patch policy – a dangerous combination.
Prediction:
By Q1 2027, at least 40% of EU local authorities will outsource NIS2 compliance to specialized MSPs like those in Hexatrust, as in-house teams lack the 24/7 SOC capability. We will see a rise in “NIS2-as-a-Service” bundles combining Patrowl.io scanning, Cyberwatch patching, and Gatewatcher NDR – packaged with a guaranteed incident response SLA. Conversely, fines will hit smaller municipalities first (€2-5M range), driving a wave of consolidated security procurement across territorial clusters. The 2026 World Cup ball may be a collector’s item, but the real prize is surviving the NIS2 audit without a penalty.
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