I do have precedence in logic, right? Alexa/Siri/etc must listen for their voice cue prompts to activate, and discarding all other discussion. So I must trust t

I do have precedence in logic, right? Alexa/Siri/etc must listen for their voice cue prompts to activate, and discarding all other discussion. So I must trust that corporation would discard if not applicable. Without a hardware cutoff switch for a mic - it is blind trust, isn't it?