This was used in the war between Russia and Finland in 1941. Without software though.
Russian had placed bombs in a city in Finland and the bombs could be triggered by a combination of frequencies broadcast on radio.
The Finnish engineers figured it out and drove a car around the city broadcasting a song that would trigger the bombs safely.
https://en…wikipedia.org/wiki/S%C3%A4kkij%C3%A4rven_polkka