Observe. Hack. Make.

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Observe. Hack. Make.
OHM2013, Aug-2013.jpg
GenreHacker con
BeginsJuly 31, 2013
EndsAugust 4, 2013
Frequencyquadrennial (every 4 years)
Location(s)Geestmerambacht, Oudkarspel, Netherlands
Previous eventHacking at Random (2009)
Next eventStill Hacking Anyway (2017)
Attendance3000 tickets sold

Observe. Hack. Make. also known as OHM, was an outdoor hacker conference that took place in the Netherlands from July 31 to August 4, 2013.[1]

This conference was the most recent event in a sequence that began with the Galactic Hacker Party in 1989, followed by Hacking at the End of the Universe in 1993, Hacking In Progress in 1997, Hackers At Large in 2001 What the Hack in 2005, and Hacking at Random in 2009. The tradition continued in Summer 2017 with Still Hacking Anyway.[2]

With 3000 tickets[3] sold the camp was completely sold out weeks before the camp started.[4] With 700 more tickets compared to the last camp[5] is was the biggest Dutch hacker camp so far.

Julian Assange[edit]

One of the highlights of this event was a live video connection with Julian Assange. After his appearance at Hacking at Random in 2009 the organizers invited Julian Assange again. This time he spoke to the audience over a live video connection from the Ecuador embassy[6] in London.


  1. ^ https://ohm2013.org
  2. ^ https://sha2017.org/
  3. ^ http://www.emerce.nl/agenda/ohm-2013
  4. ^ http://publitiek.nl/!RIWc
  5. ^ "Archived copy". gendo.ch. Archived from the original on 15 April 2016. Retrieved 13 January 2022.{{cite web}}: CS1 maint: archived copy as title (link)
  6. ^ "Hackers verzamelen zich in Nederland".