Link to the WHY tiara:
https://wiki.why2025.org/GraphicDesignIsMyPassion
Hal2001 talks:
https://media.ccc.de/search/?q=hal2001
Where to hack:
https://www.owaspbenelux.eu/
Also mentioned:
www.hackerhotel.nl
https://nl.wikipedia.org/wiki/Galactic_Hacker_Party
