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security.txt history

A historical index of security.txt files across the web.

security.txt

hhnk.nl

Collected on 2026-10-22 20:33 UTC.

#       ____  ____  ____  ____  _____ _____  ____ ____  
#      |_   ||   _||_   ||   _||_   \|_   _||_  ||_  _|  
#        | |__| |    | |__| |    |   \ | |    | |_/ /    
#        |  __  |    |  __  |    | |\ \| |    |  __'.    
#       _| |  | |_  _| |  | |_  _| |_\   |_  _| |  \ \_  
#      |____||____||____||____||_____|\____||____||____| 
#
# (sub-)domains of hhnk.nl can use a 302 redirect to use this file:
# https://www.hhnk.nl/.well-known/security.txt.
#
Expires: 2026-01-30T12:00:00.000Z
# last review: 2024-05-17
# Responsible Disclosure / Coordinated Vulnerability Disclosure
Policy: https://www.cert-wm.nl/rd
Contact: https://www.cert-wm.nl/form/melding-responsible-disclosure/de-melding-0
Contact: mailto:cert@hetwaterschapshuis.nl

Preferred-Languages: nl, en

# General contact 
Contact: https://www.hhnk.nl/contact
Contact: mailto: hhnkcert@hhnk.nl
Contact: tel: +31 72 582 82 82
# Business Hours: 0800-1700 UTC+1
# For 24/7 contact involving calamities, security incidents and 
# dataleaks outside business hours, use:
Contact: tel: +31 800 1430 

Hiring: https://www.hetkanbijhhnk.nl/

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

# Encryption: 

# Hall of Fame
Acknowledgments: https://www.cert-wm.nl/responsible-disclosure-hall-of-fame

This file is shown exactly as published by the domain, as collected by the securitytxthistory crawler. 1,307 bytes · 37 lines.

Collection details

HTTP 200/.well-known/security.txttext/plain; charset=UTF-81 redirect
Collected URL

https://www.hhnk.nl/.well-known/security.txt

SHA-256

48be4a85be390a3ad2d0332f9a2da3909c2ab9cfab45e2e587edf4bb3e583b44

Redirects

  1. 301https://hhnk.nl/.well-known/security.txt
  2. 200https://www.hhnk.nl/.well-known/security.txt