Not legal in Europe.
>2. Nobody has a right to keeping their aircraft movements private, and aircraft movements != personal movements.
While not all aircraft movements are personal movements, many are.
Private aircraft are neither private cars nor private phones and have he ever been treated equivalently under EU law.
You’re reasoning through false analogies.
The GDPR even covers you just writing notes into your diary about what your neighbours have been up to.
Yes, there are a plenty of precedents in the usual sense of the word. Such as this case, https://www.enforcementtracker.com/ETid-851
If you're going to argue (like _djo_) that this is not a precedent because it concerns a different type of a vehicle, you're entering into some rather absurd territory.
Even if it was there’s still nothing wrong with tracking the aircraft and nothing illegal about people matching the rolling ICAO hex codes to the real aircraft.
It frustrates me that we’ve allowed Musk to completely redefine the conversation around something that was already settled and accepted:
1. Flight tracking data, collected from ADS-B, is legal and publicly available. Aircraft ownership data is public too.
2. Nobody has a right to keeping their aircraft movements private, and aircraft movements != personal movements.
3. After much lobbying the FAA introduced LADD & PIA, but they say outright that it’s not a guarantee of confidentiality and just makes it slightly harder to track an aircraft.
4. PIA temporary ICAO codes can only be rotated every 60 days (going down to 20) and it’s pitifully easy for any aircraft spotter, as have hung around airports for decades, to match a new one to an aircraft registration.