If it is on, it streaming your audio to apple, where the voice recognition occurs.
You still have to say “hey Siri” for it to speak to you. And it can be easily turned off in settings. It won’t say “go and electrocute yourself” if unprompted with “hey Siri”.
“If it is on, it streaming your audio to apple, where the voice recognition occurs.”
Do your homework before posting.
It goes to Apple...that you know of.
In 2021 America, I wouldn’t bet Apple is the only set of ears listening.