The G20 in Buenos Aires just finished on the 1st of December 2018 that Forward.com reported that a cyber defense program hired by the government of Argentina to prevent the assisting head of governments & their teams. ELTA offers comprehensive cyber intelligence and security solutions that are designed for end users.They also provide paramilitary and law enforcement services.
ELTA, a subsidiary of Israel Aerospace Industries, got hired to provide cyber-defense during the international meeting. Its been reported that at least 2 drones were sighted and neutralised during the international summit. One was flying close to the delegations' hotels and the other near a gala event.
See this cool video about electronic canons disabling drones by distance from CNN
The electronic defense company was also hired successfully during the Youth Olympic Games, last October, in Argentina as well.