Originally Posted by
Flying Binghi
"Security"
Example: So yer don't like poster
XYZ123. Go to the computer hacker web site 'makeitcrash.com.ng' and pay $500 in bitcoin and next time poster
XYZ123 goes for a trip in a pilotless drone it will suffer compleat control and propulsion systems shutdown at 2000' over Melbourne city..
There are some amazing human carrying drones being developed and flown right now though "the problems of security" is what will stop them being used as anything more then test rigs over Australian city's and towns until the flight computers become hacker proof.
.
https://www.youtube.com/watch?v=QkCQ_-Id8zI
Or a quote in this one "anybody want to crash a few airliners"
https://www.youtube.com/watch?v=LlKDkTbUFhU
I don't think security is a real issue that can not easily be dealt with, similar or more damage can/could be done hacking into cars and trucks computers.
2 or more independent flying and navigating systems could be used and any conflicting data lead to a safe mode landing.
Also a drone will be of a fairly light mass and not carry lots of combustible fuel, so its targets would need to be very strategic and defenceless. Yes we could load it up with explosives and send it off empty to a target to detonate on arrival - but we can fit a sensor to detect that and instantly report it and disable flight.