Beyond Tellerrand: Security is Everyone's Responsibility
This was the kind of talk after which one you shut down your phone and reset all your passwords when back at home.
James Hall how us how he can intercept traffic of devices using the same wifi (after having cracked this wifi). It was terrific !

James Hall – Security is Everyone’s Responsibility – beyond tellerrand Berlin 2014 from beyond tellerrand on Vimeo.
Tweets
Some tweets about the talk:
Nice offline demo on internet security with envelope, locks and keys by @MrRio #btconf #btsec
— Gunnar Bittersmann (@g16n) 5 Novembre 2014