Water Utility Cybersecurity Program
Water utilities are cyberattack targets - they control critical infrastructure. Secure OT/SCADA systems, meet NIS2 requirements and increase incident resilience.
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What is the Water Utility Cybersecurity Program?
The Water Utility Cybersecurity Program is a sector-specific security service that audits IT and OT environments, hardens SCADA systems, and implements NIS2 compliance for water and wastewater operators — essential entities facing fines of up to €10 million for non-compliance. nFlo uses passive, non-disruptive audit methods that never interrupt operations, delivers a prioritized roadmap from quick wins to full Purdue Model segmentation, and assists with KPO grant applications of up to PLN 1.3 million for security investments.
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Discuss Water Utility Cybersecurity Program with your dedicated account manager.
Attack on water utility can poison water - this is not science fiction
OT security for water utilities
IT/OT Audit
Industrial environment security assessment
SCADA Security
Control system protection
NIS2 Compliance
Gap analysis and implementation plan
Cyberattack on Water Treatment Plant - Chemical Parameter Change
In 2021, a hacker broke into the SCADA system of a water treatment plant in Florida (USA) and increased sodium hydroxide concentration to toxic levels. Fortunately, an operator noticed the change and manually restored correct parameters. The attack was possible due to a weak password and lack of network segmentation.
Without proper OT security:
- Threat to resident health and life (water parameter changes)
- Fines up to €10 million or 2% of turnover for NIS2 non-compliance
- Water supply interruptions after cyberattack
- Loss of critical infrastructure operator license
Comprehensive Industrial Environment Protection
We specialize in OT/ICS security - we understand SCADA specifics and process control systems. We don’t treat water utilities like an office - it’s different technology and different threats.
What you get:
- IT and OT asset inventory (servers, PLCs, HMIs, SCADA)
- Network architecture and IT/OT segmentation audit
- Industrial system configuration review
- Remote access and permissions assessment
- Gap analysis against NIS2 and IEC 62443
- Backup and disaster recovery procedure review
- Network segmentation plan (zones & conduits)
- Security implementation roadmap with priorities
Who Is It For?
This service is for you if you are:
- A water and wastewater utility
- A water treatment plant operator
- An entity managing water infrastructure
- A local authority responsible for water services
Water Utility Security Specifics
Unique Water Sector Challenges
1. 24/7 Critical Systems
- No maintenance windows (water must always flow)
- Difficulty patching OT systems
- Need to test in isolated environments
2. Legacy Infrastructure
- Legacy systems - PLCs and SCADA 15-20 years old
- Windows XP/7 systems in industrial environment
- No vendor support for older versions
3. Geographic Dispersion
- Dozens of pump stations and water intakes
- Remote monitoring via SCADA
- GSM/radio connectivity with field facilities
4. Limited IT Resources
- Small IT teams (often 1-2 people)
- No OT security specialists
- Limited cybersecurity budget
Key Security Areas
1. Network Segmentation
- IT/OT separation (Purdue Model)
- Security zones (DMZ, SCADA network)
- Industrial firewalls between zones
- Network access control (NAC)
2. SCADA Security
- SCADA and HMI server hardening
- PLC communication security (authentication)
- Secure configuration (disable unnecessary services)
- PLC and SCADA configuration backup
3. Access Management
- Permission segmentation (operators vs. engineers)
- Multi-factor authentication (MFA)
- Secure remote access (VPN, jump server)
- OT access monitoring and logging
4. Monitoring and Detection
- IDS/IPS for OT network
- SCADA communication anomaly monitoring
- SIEM with OT integration
- Alerts on unusual parameter changes
5. Business Continuity
- Offline PLC configuration backup
- SCADA disaster recovery plan
- Manual control procedures (bypass)
- System recovery testing
NIS2 Compliance
Requirements for Water Utility Operators
Water utilities are essential entities under NIS2:
- Cybersecurity risk management
- Network and information system security
- Incident management
- Business continuity and crisis management
- Supply chain security
- Audits and penetration testing
- Employee training
Penalties for non-compliance:
- Up to €10 million or 2% of global annual turnover
- Personal liability of board members
- Loss of certificates and permits
Implementation Program
Phase 1: Assessment (4-6 weeks)
- IT and OT inventory
- Security and architecture audit
- NIS2 and IEC 62443 gap analysis
- Critical asset risk assessment
Phase 2: Quick Wins (2-3 months)
- Basic network segmentation
- SCADA system hardening
- Secure remote access (MFA, VPN)
- OT backup procedures
Phase 3: Strategic Implementation (6-12 months)
- Full segmentation per Purdue Model
- OT monitoring and detection (IDS/IPS)
- Incident management system
- Disaster recovery and BCP
- NIS2-compliant ISMS documentation
Phase 4: Maintenance and Improvement
- OT threat monitoring
- Periodic audits and testing
- Procedure updates
- Operator training
Related Glossary Terms
Learn more about key concepts related to this service:
How we work
Our proven service delivery process.
Discovery
IT and OT system inventory
Assessment
Security and network segmentation audit
Gap Analysis
NIS2 gap identification
Roadmap
Prioritized action plan
Support
Security implementation support
Benefits for your business
What you gain by choosing this service.
NIS2 Compliance
Avoid fines for directive non-compliance
SCADA Protection
Process control system security
Supply Continuity
Water flows even after cyberattack
Public Trust
Residents know water is safe
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Read more →Frequently Asked Questions
Common questions about Water Utility Cybersecurity Program.
Does the OT audit require stopping technological processes?
No. The audit is conducted using passive methods - configuration analysis, network architecture review, access permission inspection. We do not interfere with the operation of SCADA or PLC systems, so production and water supply are not interrupted.
What penalties apply for NIS2 non-compliance for water utility operators?
Penalties can reach EUR 10 million or 2% of global annual turnover. Additionally, board members bear personal liability. Water and wastewater utilities are essential entities under NIS2 and are subject to the full requirements of the directive.
How long does it take to implement basic OT security measures?
Assessment takes 4-6 weeks, quick wins (basic segmentation, SCADA hardening, MFA for remote access) another 2-3 months. Full strategic implementation with Purdue Model segmentation, IDS/IPS for OT and ISMS takes 6-12 months.
How do you secure remote access to distributed facilities?
We implement secure access via VPN with a jump server and multi-factor authentication (MFA). All remote access to OT systems is logged and monitored. We eliminate simple passwords and direct RDP access to SCADA.
Is it possible to obtain funding for water utility cybersecurity?
Yes. Under the KPO programme, funding of up to PLN 1.3 million can be obtained for securing water infrastructure. We assist with application preparation and documentation required for grant settlement.