I had a lot of fun running this workshop at the congress last week. Visitors were invited to make their own blocking pouch. We had tons of interesting discussions at the table and it showed a lot of people know much about radio waves and frequencies but often have a hard time working the sewing machine :))
Thx for joining! to be continued…

 
“Open workshop to passively block your phone from sending and receiving. Make your own signal blocking Faraday pouch! How to wrap your phone to kill any wireless connection? How to pack your phone so it can’t record any sound? Which materials work best? Where to get them? What are the cheapest and fastest solutions? We have cloths, tools and a sewing machine. Feel free to join! Bring your own stuff!
http://killyourphone.com/
https://events.ccc.de/congress/2013/wiki/Projects:Kill_Your_Phone!

at 30C3: 30th Chaos Communication Congress
December 27th to 30th, 2013 Hamburg”