This might be paranoid. But I've established a protocol with some people in my life. Should someone with my voice ever contact them and ask for money (because emergency bla bla), nothing is to be done until a passphrase is mentioned. It's only a matter of time, until someone gets significant voice data and related contact numbers and proceeds with using those voices to train a model. Afterwards, that model will be used to real-time fake the original voice in a scamming attempt.