Security guidance and technologies for organisations and individuals in Denmark and the EU.
August 2026: book launch
New book about running Tor for more than 11 years - in danish.
Titel: 11 år med Tor: Mine erfaringer som Tor-exit operatør
Ophavsret: Denne bog må kopieres frit under Creative Commons Zero (CC0) licensen:
https://creativecommons.org/publicdomain/zero/1.0/deed.da
Udgivelsesdato: Første udgave 2026-08-14, Zencurity ApS, Hundested
ISBN-13 978-87-976479-0-5 Trykt udgave
ISBN-13 978-87-976479-1-2 e-bog
Download here: book-11-aar-med-tor-final.pdf
You can buy a printed version for 150DKK and support Tor in Denmark by sending email to hlk@zencurity.com. The printed book is printed and bound at home – quality accordingly.
New service: Network visibility for your organisation
Port Scan API — continuous exposure monitoring
On-demand REST API for port scanning your IP space. No manual requests — scan via API and get JSON/XML back with open ports per host. Ideal for NIS2 documentation and ongoing exposure checks.
See more and request trial at https://app.scanlab.dk
Upcoming courses
- 25. august 2026 PROSA Odense Fysisk Self-hosting og digital suverænitet
- 2. november 2026 PROSA Aarhus Fysisk Self-hosting og digital suverænitet
- 4. november 2026 PROSA København Fysisk Self-hosting og digital suverænitet
- efterår 2026 PROSA København og remote Netværk og TCP/IP for begyndere
Services offered
- Pentest and security services, focused on network infrastructure and configuration review of firewalls, routers, switches, ..
- Registering internet resources such as IP addresses and help in creating a LIR in RIPE NCC, we ensure efficient handling of the process for customer
- We provide performance and DDoS testing
- Network security consulting, network design and procurement, full BGP configuration, routers, loadbalancing, ..
- Need an IDS? We configure Suricata or Zeek
- We implement ISMS: ISO 27001 / NIS2 / CIS18 v8 / DORA / CER alongside your staff
- We offer Personal Digital Security services for activists, journalists, executives, celebrities and other at-risk individuals
- Information backup as required by ISO 27001:2022, section 8.13.
- We provide domain registration services
Customers
Our customers are typically medium to large companies based in Denmark with high security requirements. Some customers have been with us for +20 years!