Buying an antidrone and even antimissile system like say Pantsir-S1, Skyranger 30 or similar is just few million dollars - peanuts compare to the cost of the datacenter to be protected. Once AMAZN starts doing it for themselves, they will possibly also start air-defense-as-a-service using spare capacity.

With all the money and assets and the whole value of business, the Big Tech has already started to move into energy, and i think the defense, starting with self-defense, will be among the nearest-future next domains they will move into.