Could the same be done in air traffic control? It's certainly possible with ACARS. What's about information from aircraft transmitted via ADS-B? And could CPD

Could the same be done in air traffic control? It's certainly possible with ACARS. What's about information from aircraft transmitted via ADS-B? And could CPDLC data sent from air traffic control to aircraft be faked as well? I would be very surprised if proper encryption and authentication were in place for ADS-B and CPDLC … Some Wikipedia links if you don't know the abbreviations used above: https://en.wikipedia.org/wiki/ACARS https://en.wikipedia.org/wiki/ACARS https://en.wikipedia.org/wiki/ADS-B https://en.wikipedia.org/wiki/ADS-B https://en.wikipedia.org/wiki/CPDLC https://en.wikipedia.org/wiki/CPDLC