"We see listening microphones everywhere in modern day life, and people may not even be aware that they're there." Morey Haber, CTO of the security firm BeyondTrust told me.

He said these devices are always listening for the action keyword, which means they're always listening to everything we say. If that worries you, he says make changes in settings.

"If you want to be perfectly safe with those devices, most have a microphone off button," Haber said.

That means No more "Hey Siri", or "Alexa..."

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