Any device that is listening all the time can be storing and sending anything you said. How would you know if it's encrypted?

There has GOT TO BE a better way. Such as a filter made by independent manufacturers that opens the sound channel only when you say a specific phrase such as "OK Google" and closes it when you press a button or stop speaking. And an indicator would be visible when it's actually listening.

The question is, how to prevent collusion with the independent filter companies? There has to be SOME WAY to open source hardware and prevent companies from essentially performing their own interdiction on it:

https://www.google.com/amp/www.theverge.com/platform/amp/201...