Fancy private bank so getting a human isn't the issue

...but I know one of the signals they use for authentication is voice analysis in background...which I do not love.

That’s the sneaky bit they don’t tell you when you hear the “This call may be monitored or recorded” part.

Alas this was set up before good voice cloning happened. So was very much an active plan not covert. I asked if it can be disabled but apparently no.

Not end of world - it’s not the primary Auth means but still not ideal.

If I'm not mistaken, that's how pindrop does it. Ambient noise analysis