During any of the press conferences held so far or in any of the statements issued, has the possibility of an act of sabotage been referred to or ruled out?
Given the amount of electronics this thing has, all of it presumably controlled by field upgrade-able software, the possibility of some kind of malware being introduced cannot be ruled out.
I wonder how the aircraft systems are hardened against such threats, though I don't expect this to be information readily shared by the manufacturer or the authorities ;-)