CIA 'tried to crack security of Apple devices'

Agency tried to create dummy version of development software that would allow it to insert surveillance back doors into apps

The CIA led sophisticated intelligence agency efforts to undermine the encryption used in Apple phones, as well as insert secret surveillance back doors into apps, top-secret documents published by the Intercept online news site have revealed.

The newly disclosed documents from the National Security Agency's internal systems show surveillance methods were presented at its secret annual conference, known as the "jamboree".