> Dumping data from the memory of your phone can't be unauthorized.
> just dumping the diagnostics for regular phone calls should be fine
IANAL, but computer hacking laws like the CMA in the UK and CFAA in the US are written in a manner so vague that even pressing F12 to view the source of a web page could be a violation [0]. From O2's perspective, they could argue that the OP has accessed their internal diagnostic data in an unauthorized manner. What we (technical people) think is irrelevant.
> just dumping the diagnostics for regular phone calls should be fine
IANAL, but computer hacking laws like the CMA in the UK and CFAA in the US are written in a manner so vague that even pressing F12 to view the source of a web page could be a violation [0]. From O2's perspective, they could argue that the OP has accessed their internal diagnostic data in an unauthorized manner. What we (technical people) think is irrelevant.
[0]: In the US, the DOJ has revised its policy to not prosecute defendants pursuing "good faith security research," which you may trust at your own risk: https://www.justice.gov/archives/opa/pr/department-justice-a...