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2026-01-03
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A vulnerability disclosure policy (VDP), also referred to as a responsible disclosure policy, describes how an organization will handle reports of vulnerabilities submitted by ethical hackers. A VDP must thus be easily identifiable via a simple way, a security.txt notice.

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#

# SIDN Labs RFC 9116 security.txt

#

Canonical: https://docco.nl/.well-known/security.txt

Canonical: https://www.docco.nl/.well-known/security.txt



Expires: 2023-09-10T12:40:01+00:00



# If you would like to report a security issue please first read our

# responsible disclosure policy:

Policy: https://www.sidn.nl/en/cybersecurity/reporting-a-security-breach

Policy: https://www.sidn.nl/cybersecurity/beveiligingslek-melden



# Please always try to contact us through our responsible disclosure form

# to speed up things. Should that not be an option, then in order of

# preference the ways to contact us are:

Contact: https://www.sidn.nl/en/cybersecurity/reporting-a-security-breach

Contact: https://www.sidn.nl/cybersecurity/beveiligingslek-melden

Contact: mailto:csirt@sidn.nl

Contact: tel:+31263525500



# We do *not* use OpenPGP, so do *not* use the key that was used to sign this

# security.txt file for sending us messages. Use the S/MIME public key

# below instead:

Encryption: https://www.sidn.nl/.well-known/csirt_sidn_nl.crt



# We can offer you a swift and proper response in the following languages:

Preferred-Languages: nl, en



# Once a year we update our acknowledgement text file:

Acknowledgments: https://www.sidn.nl/.well-known/security_acknowledgements.txt



# If you think you'd like to join our team, please visit our job vacancy page:

Hiring: https://www.sidn.nl/en/work-at-sidn

Hiring: https://www.sidn.nl/werken-bij-sidn



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