Online Article Published by 'Wired': Research 'Hacks' Brainwaves to Reveal Some Personal Data.
Extract:
A study conducted by a team of security researchers suggests that:
Personal information, such as PIN numbers and credit card data, can be gleaned from the brainwave data of users wearing popular consumer-grade EEG headsets.
EEG headsets, like those by Emotiv Systems and NeuroSky, are becoming increasingly popular for gaming.
Aricle here:
http://www.wired.com/threatlevel/2012/08/brainwave-hacking/