While voice recognition has made serious leaps and bounds over the past few years, it's still got a long way to go before it's fully secure.
After all, what good is having unlocked virtual assistant if just about anyone can use it?
It's a serious problem companies are starting to have to face.
But now Amazon is actively working to ensure that Alexa (and thus, the Echo) can tell people apart just by listening to them speak.
According to sources speaking to Time, Amazon has been working on something called 'Voice ID' since the summer of 2015.
This would involve having Alexa compare the voice of the person giving commands with a pre-recorded voice sample.