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#HTH21 promises to be epic. Here's why.

Event Setup

  • 200 hackers will be invited to compete. We strive for a mix of both (inter)national professional / experienced and student hackers.
  • New! Teams of 1-4 people.
  • Much bigger scope than previous editions.
  • An interactive side-programme during the event with status updates, interviews with contestants, secret expert talks, a sneak peak in the control room, a live award ceremony, and more!


12 prizes ranging from €500-€2000 available in four different categories:

  • Most Creative Hack
  • Most Advanced Hack
  • Most Impactful Hack
  • New for students! Hâckademic Award. Aside from cash, the three winning student-teams in this category will also receive a recommendation letter to boost their careers, signed by our renowned jury members.

Technical details

We’ll be using an online platform which will allow you to communicate with each other and the organisation during the event. The Zerocopter platform will be used to submit vulnerabilities you find during the event.

More details on the event will be disclosed as time progresses.

Register for HTH21

Do you have any questions regarding the event, or are you interested in #HTH21 for press-related requests, contact us at hackthehague@cybersprint.com.

27 September 2021

10:00 - 17:30 CEST

Register for HTH21

Register before 1 July 2021

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Organised by


Cybersecurity and the Municipality of The Hague

As the international city of Peace & Justice, cybersecurity remains crucial to the municipality of The Hague. With regular internal and external assessments, we’re constantly working on our digital security. The Responsible Disclosure aims to better protect the city’s residents, companies and systems by mitigating vulnerabilities. People who report such vulnerabilities via the Responsible Disclosure policy are allegeable to receive a reward.

Hâck The Hague helps to map and assess the municipality’s digital footprint, a necessary step in strengthening the cyber-resilience. In addition, it contributes to raising awareness among residents, entrepreneurs and employees about digital security. Hackers discovered 102 vulnerabilities during last year’s edition, most of which have since been resolved.

If you find any vulnerabilities in the meantime, you can still report it through the responsible disclosure policy of the municipality of The Hague.


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