With respect to DJI your concerns are well-founded. DJI drones contain spyware and the US DoD has banned their purchase. https://hotair.com/john-s-2/2020/07/24

With respect to DJI your concerns are well-founded. DJI drones contain spyware and the US DoD has banned their purchase. https://hotair.com/john-s-2/2020/07/24/security-analysts-reverse-engineered-chinese-made-dji-drone-app-found-ability-spy-users-n346240 https://hotair.com/john-s-2/2020/07/24/security-analysts-rev... https://www.theverge.com/2017/8/4/16095244/us-army-stop-using-dji-drones-cybersecurity https://www.theverge.com/2017/8/4/16095244/us-army-stop-usin...