The issue, first flagged by the founder of Android Police, gets the Assistant up and running, thereby draining the battery of its device and also increasing the chances of capturing voice conversations without permission.
Here's all you need to know about it.
Wake word detection
First, here's a refresher on Assistant's wake word detection
We all know that Google Assistant on phones, smart speakers and displays can be triggered by the 'Ok Google' or 'Hey Google' wake word.
The command prompts the Assistant to activate and listen to the query that follows immediately after the wake word.
It helps the Assistant answer only relevant queries that the user wants and nothing else.
Issue triggers with multiple Assistant-powered devices
While Assistant's detection works seamlessly, AP founder Artem Russakovskii reported that its capabilities can go haywire when there are multiple Assistant-powered devices in close proximity.
Essentially, when you trigger Assistant on one device, say like a Google Home, the other one, like on your phone, can also activate.
Post that, the second device's Assistant remains stuck as 'active', listening in on your conversations indefinitely.
Here's what he tweeted about the issue
Love it when my Google devices hear me say Hey Google, realize I'm talking to the Google Home, and THEN NEVER TURN OFF THEIR SCREENS.
Presumably, this Pixel 3 will remain on until the heat death of the universe or its screen catches fire, whichever comes first. pic.twitter.com/5paCoU9xi1