Researchers didn't have to hack Amazon's Alexa voice assistant to use it for eavesdropping. ... Because an Echo's mic only activates to send sound over the internet when someone says a wake wordusually "Alexa" the researchers looked to see if they could piggyback on one of those legitimate reactions to listen in.
Amazon is rolling out a new Alexa feature for Echo speakers that intelligently reduces the voice assistant's volume when you whisper a command. ... Whisper Mode... more
