It's a real issue, but why do you only see it in ai? It's true for any case where you're speaking into a microphone

Depending on the permissions granted to apps on your mobile device, it can even be passively exfiltrated without you ever noticing - and that's ignoring the video clips people take and put online. Like your grandma uploading to Facebook a short moment from a Christmas meet or similar

There have already been successful scams - eg calls from "relatives" (AI) calling family members needing money urgently and convincing them to send the money...

I completely agree - but I think those scams you refer to are less explicit but could potentially be anywhere.

AI I am intentionally providing them my voice. I'm not sure that the value to security risk is good.