Stop listening! I don't want you to use my work-related conversations.
PSA. If you are one of millions in the situation where you have to WFH and you deal with sensitive information, then unplug your Google Home and Alexa devices! They are effectively listening to your conversations to "improve voice-recognition features". Don't take the risk!
Thank you, Rachel. Good advice.
I am not familiar with "OK Google" devices, but Amazon's Echo (Alexa) devices have a button to disable the microphone. Mic-Off status is confirmed by the color ring staying bright red.
Remember to deal with your phones, also, which may have Siri, Google, Alexa, and possibly other apps listening all the time for their trigger words.