NIS2 and the Drinking Water Sector
Suppliers and distributors of water for human consumption are classified as highly critical under NIS2 Annex I. Attacks on water treatment OT systems can have immediate public health consequences.
Key cyber risks in Drinking Water
- ▸OT attacks targeting SCADA/water treatment controls
- ▸Tampering with chemical dosing systems
- ▸Unauthorised access to distribution network controls
Focus obligations for Drinking Water
- ✓OT/IT network segmentation
- ✓72-hour incident reporting to national authority
- ✓Physical and cyber security integration
- ✓Emergency response planning for supply disruptions
Who is covered?
Examples of in-scope organisation types:
- ·Municipal water utilities
- ·Regional water treatment authorities
- ·Private water supply operators
Is your Drinking Water organisation in scope?
Answer 5 questions and get a personalised NIS2 scope assessment, obligation checklist and readiness score — free.
Check your scope →Drinking Water NIS2 compliance by country
See how national transpositions affect Drinking Water obligations in each EU member state:
Frequently asked questions
Is the Drinking Water sector covered by NIS2?
Yes. The Drinking Water sector is listed in NIS2 Annex I (highly critical sectors). Medium and large organisations in this sector must comply with NIS2 obligations. Suppliers and distributors of water for human consumption are classified as highly critical under NIS2 Annex I. Attacks on water treatment OT systems can have immediate public health consequences.
Are Drinking Water organisations Essential or Important Entities?
Under NIS2, large Drinking Water organisations are typically Essential Entities. Medium-sized Drinking Water organisations are Essential (large) / Important (medium). The distinction affects supervisory intensity and fine levels.
What are the key NIS2 obligations for the Drinking Water sector?
OT/IT network segmentation; 72-hour incident reporting to national authority; Physical and cyber security integration; Emergency response planning for supply disruptions. Obligations apply under NIS2 Articles 21 (security measures) and 23 (incident reporting).
Which national authorities supervise NIS2 for Drinking Water in each EU country?
Each EU member state designates a national competent authority for NIS2. Visit any country page on NISDESK to see the specific authority and CSIRT for the Drinking Water sector in that country.
For decision-support purposes only. Exact scope depends on national transposition.