Backgrounder for Challenge A

Backgrounder for Challenge B

Backgrounder for Challenge C

Backgrounder for Challenge D

(Aims and Backgrounders are also available in a single 20-pager Free and Safe in Cyberspace – Aims and Backgrounders (PDF), authored by Rufo Guerreschi and Jovan Golic; which updated an original backgrounder page of EU Edition 2015, published September 23rd 2015)