Better if you will use an external wallet where you hold your own private keys or seed phrases. I am not saying that I don't trust binance but they might get hacked or they might do some restrictions in the future as they are centralized. Have you heard those people who have issues with the banks where their money got frozen and sometimes the banks use it without their consent? They are so many active cases like that right now.

If the demand is fake then I think binance will know it but if it's a valid request like if the complainers claims that they got hacked and the money is still there inside the platform, then I think it's possible for them to get that money.