unauthorized modification

Hello! I live in Russia. I have been using Apple products for 8 years now.

12 mini handed over to a service center in his city. It was sent to the main service center in Moscow, where experts issued a verdict: unauthorized modification.

For its part, no action has ever been taken in this direction. I have never taken the device in for repair before.

1) Can I find out the date when there was an attempt to hack my phone? Service centers refuse to provide this information.

2) I, as a user, could have been sold a device that was obviously hacked. And what should I do now: just throw it away? Since even on a paid basis, service centers refuse to perform repairs.

3) Maybe there was a hacking attempt after passing it to a service center in my city? Moreover, when entering your account (on another phone), a password code is requested, and after passing it to the service center, it does not work! I remember the code, it is correct, there can be no doubt!