ISIS network that attacked Paris used Sony Playstation 4s as communications devices to evade US evesdropping:
http://qz.com/550365/belgian-home-affairs-minister-says-isil-communicates-over-playstation-4/
Who informed them?
The suicide vests used by Friday’s attackers in Paris– a first in France — were made by a highly skilled professional who could still be at large in Europe, intelligence and security experts say.
http://tribune.com.pk/story/991959/paris-suicide-vests-mark-change-of-tactics-and-new-threat/
Who designed them?