You want to take down a drone which is pestering you, blast it with sound.
Their research works on the vulnerability is all due to resonance which is a natural property of all objects.
Once they singled out the threshold level of a drone, they attached a speaker to the drone.
It took off normally, but crashed as soon as they played sounds at the resonant frequency.
The paperdetailing their findings will be presented in Washington, D.C. at next weeks 24th USENIX Security Symposium.
source: www.techworm.net
