ALUHUT WORKSHOP (tin foil hat workshop)
at Chaos Communication Camp 2015 http://events.ccc.de/camp/2015/wiki/Main_Page
Make your own aluminum hat (much better than tin foil!!) to protect yourself from any waves and all surveillance!! It is very very safe! :)) Just drop by!
DAY 2, Friday 14.8.2015, 14:00 – 18:00 h
C-base village, next to BER.