It might be real or someone's idea of a joke but a number station is believed to be a way to transfer information to someone without there being a direct contac

It might be real or someone's idea of a joke but a number station is believed to be a way to transfer information to someone without there being a direct contact between the two parties. Say, a spy agency and an agent somewhere in the world. This was very anonymous over a radio signal but over the internet I have my doubts. https://en.wikipedia.org/wiki/Numbers_station https://en.wikipedia.org/wiki/Numbers_station