I live near a free wifi hotspot from Xfinity and it's not protected. Anyone with Xfinity at home can use this hotspot while in the same field as I am (it has a very strong signal). If they happen to have the same app as I was using for controlling my drone on their phone, say the Wingsland S6 app, can your drone be taken over by another person using the app while watching on the sidelines?
With a very old radio scanner, a person would have the ability to scan all the frequencies, including any and all cell phone frequencies. All "newer" radio scanners have been built without those capabilities because of privacy concerns, even outlawing them. (I don't remember when this happened, but I know they did all this at least 30-40 years ago). If someone had an older scanner, they could find the frequency quite easily and tune to your drones radio frequency and download (or already have) an app on their phone to universally control any drone.
Do you know of anyone that has tested this theory? My cell phone is too old to use any apps made in the past 5 years, so I can't test it out.
I'm also thinking that my little toy drone (WLtoys V686G) may have been taken over by someone using the same controller from a house next to this field. WLtoys has a bunch of drone models using the same controller as I have and it doesn't support "signal jumping" even though it's 2.4ghz (I think). It went a little nuts about 10-15 times without me controlling it! I know it wasn't just "one of those things" because they were doing a better job at piloting it than I was!
I know the FPV camera is locked on one 5.8ghz signal and can't be changed, so people can view what my toy drone camera is looking at. They do this for crowds at drone racing events. Any FPV monitor or goggles that have scanning abilities should be able to find the video signal.
I'm just a curious guy with a few questions looking for a few answers .... (input smiley face here)