[Cryptography] Bizarre behavior of a non-smart mobile phone

[mok-kong shen]

Am 11.05.2017 um 13:26 schrieb Shawn K. Quinn:

> Bad hardware (particularly the make call and end call/power off buttons)
> comes to mind, though bad software is also possible. (I had a feature
> phone that would power off and/or lock up at random, though it didn't
> make random phone calls like yours did).
During an certain  initial period I never made calls myself and the 
device was in a closed
state such that its buttons were protected from being pressed and yet 
the phenomenon
occurred. Thus I surmise that  software manipulation could be a likely 
cause.

M. K. Shen