Arjen Kamphuis (Groningen, 26 January 1972 – missing since 20 August 2018, last seen in Bodø, Norway) was a cybersecurity expert and hacktivist.

Ever since Edward Snowden leaked highly classified information from the National Security Agency (NSA) in 2013, he was especially dedicated to protecting investigative journalists.

[1] He wrote the book ‘Information security for investigative journalists’[2] with co-author Silkie Carlo, director of Big Brother Watch.

Kamphuis studied Natural Sciences at Utrecht University and worked for IBM and Twynstra Gudde as IT architect, trainer and IT strategy advisor.

[10] The Norwegian police conclude that Kamphuis probably drowned due to a kayaking incident on the fjord near Rognan, Norway.

(Bart) Jacobs, Professor Interdisciplinary Hub for Security, Privacy and Data Governance at Radboud University Nijmegen in the Netherlands wrote the introduction Arjen Kamphuis and the public cause in the digital world.