I bought a Chinese version Samsung, and I haven't used Android for a long time. After some tinkering, I installed the software. At first, I didn't think much of the prompt I saw, but the next day the anti-fraud team called me. It seems they reported the IMEI and phone number. After searching a bit, I feel it should be this package that reported it: I found that not many people online have written about this, so I'm recording it.