Are you not adding any other security measure before you can confirm your transaction, like 2fa or email confirmation? binance  have this option so you will know every time that there is unrecognised transaction and you can block it once you see it in your email .

You can do nothing now but you can request to block the address or marked the address as hackers account. No idea how this works but I saw  Something like this has happened before that they can mark it.