Ask a question
Questions about your organisation’s cyber resilience or our services? Please contact us via the contact form.
Contact and incident reporting
The NCSC operates a cyber incident reporting line 24 hours a day, 7 days a week. For non-urgent matters or general queries: we are always open to your questions, feedback, or ideas about our services. Below you can find how to reach us.
Do you need immediate assistance?
In the event of a cyber incident within your organisation, you can reach us 24/7. You can report the incident or contact us through our 24/7 support service.
If you are a citizen and have become a victim of cybercrime, please contact the police or the Fraudehelpdesk.
Practical information
Opening hours
The NCSC can be reached on working days from 08:00 to 17:00. In the event of cyber incidents, the NCSC operates 24/7.
Contact details
You can reach us by phone, email, or via the web form. You can also send us an encrypted email using a PGP key.
- Telephone: (070) 751 55 55 (available between 09:00 and 12:00, option 2)
- Email: info@ncsc.nl
The NCSC serves as the Computer Security Incident Response Team (CSIRT) for critical and essential organisations in certain sectors in the Netherlands. The NCSC operates a cyber incident reporting line 24 hours a day, 7 days a week. Organisations can send reports to cert@ncsc.nl.
Media enquiries are handled by the NCSC's press officers:
- Job Holzhauer
Mobile: +31 6 25 68 81 84
Email: j.holzhauer@minjenv.nl
- Roger Kaemingk
Mobile: +31 6 31 10 51 89
Email: roger.kaemingk@ncsc.nl
- Georgine Aerts
Mobile: +31 6 29 69 15 00
Email: georgine.aerts@ncsc.nl
Press officers do not provide a 24/7 service. For urgent enquiries outside office hours, please contact the control room: telephone +31 70 426 60 60.
Our address
Our visitor address
Turfmarkt 147
2511 DP The Hague, The Netherlands
Visitors are required to present identification upon arrival.
Our postal address
PO Box 117
2501 CC The Hague, The Netherlands