Google acknowledged that it made a mistake when it did not discover that the Nest Secure security system contained a microphone on the device. In a statement provided by Business Insider the company spokesman said: "The microphone on the device has never been designed to be a secret and should have been listed in the technical specifications. It was a mistake on our part. "
In early February, Google announced that it will add the built-in support for the Google Assistant for Nest Guard, which is a Hub and Nest Secure keyboard. Prior to this, the product security page did not mention that it contained a microphone. In a statement, Google explained that "the microphone has never been turned on and it will only be activated when users have specially enabled this option." Since then, the product page has been updated to recall the microphone.
Google continued: "Security systems often use microphones to provide functions that rely on sound sensing. We have included the microphone on the device so that we can potentially offer additional features for our users in the future, for example, the ability to detect broken glass. "
An unknown microphone presents a few problems, or you do not trust Google to not listen to you (that people often charge Facebook via the microphone of your phone), or you do not trust,The microphone will not be cracked by a third party and used to spy on you. In any case, Google would have to report the existence of a microphone when Nest Secure was first announced and users with complete confidence could believe their trust is being betrayed by the Nest product vendor.