[tom1337]

I'd say that it'd be your data but you might not be the copyright holder. But if the data is on a storage media that you own, I would consider it your data.

[streetfighter64]

That's a very weird definition of "your data" that goes against e.g. the GDPR definition, etc.

[randallsquared]

If the GDPR is wrong, it's not the first time. See Lysenko.