That's not too far off the mark. Those drones are hackable by wifi.
Well, assuming that:
- they have wifi. I can see an implementation of a drone without wifi involving a dock station with a wired interface for the drone to receive instructions.
- they're not properly configured with encryption over the wifi link; I would think that these drones would be configured pretty securely by default.
- they accept random commands from anyone; I can design a scheme that requires commands to the drones to be digitally signed.
I mean, clearly these are things that the Amazon software/hardware R&D guys haven't thought about at all. It's a good thing that someone like you, with a long and illustrious career in the field of computer security is available to Amazon. Your white-hat hacking skills and security expertise are needed! Do you offer consultation? Preferably, in 5 second increments and wrapped in plastic!
Someone can hack into the drone and have parcels delivered elsewhere.
And someone can steal a UPS truck when a driver steps away with the vehicle turned on to deliver a package inside a building. That seems like a much more realistic and likely attack, especially if you consider the economics: tiny drone carrying few things vs. big truck carrying many things!