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A detailed look at how Google Nest collects, stores, and uses your personal data.
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Terrible
Google Nest's privacy score of 12/100 reflects their data collection practices, transparency, incident history, and user control options. This score indicates significant privacy concerns that users should be aware of.
In 2019, Google failed to disclose a hidden microphone in the Nest Guard security device. The microphone was undocumented in any product specifications, discovered only when Google announced it would support Google Assistant.
Nest cameras were compromised in multiple incidents in 2019, with hackers accessing cameras to speak to residents, including a widely reported incident where a hacker warned a family of a fake missile attack through their Nest camera.
Google's integration of Nest data into the broader Google ecosystem in 2019 effectively expanded Nest's data sharing, as users were migrated from standalone Nest accounts to Google accounts with Google's broader privacy policy.
In 2022, a Google employee was found to have used Nest device access to spy on minors, highlighting inadequate internal access controls for smart home device data.
Nest Thermostat data was revealed in 2018 to feed into Google's broader user profiling, with home occupancy patterns and temperature preferences used to enhance advertising profiles.
Reducing Google Nest's data collection requires addressing both the Nest devices and their integration with the broader Google ecosystem. In the Google Home app, go to Settings > Privacy and review all data sharing options. Disable 'Help improve Google' under each Nest device's settings to prevent audio and video from being reviewed by Google employees. For Nest cameras, disable face recognition (Familiar Faces) if you do not need it, as it uploads facial biometric data to Google's servers. Turn off camera and microphone when you are home using the physical privacy toggle if your device has one. In the Google Home app, disable 'Personal Results' to prevent Nest speakers from accessing your personal data. Go to your Google Account > Data & Privacy and review how Nest data integrates with your broader Google profile. Delete stored audio recordings under myactivity.google.com by filtering for 'Home & Voice' activity. Disable 'Web & App Activity' to prevent Nest data from feeding into your Google advertising profile. For Nest Thermostat, disable 'Home/Away Assist' and 'Auto-Schedule' features if you do not want Google tracking your occupancy patterns. Set schedules manually instead. For Nest cameras, reduce video quality to minimize data transferred to Google's cloud. Use activity zones to limit recording areas. Consider disabling cloud storage and using local-only recording if your Nest model supports it. For Nest Wifi, disable any data collection features in the router settings. The most effective approach is migrating to Home Assistant, an open-source home automation platform that runs entirely on local hardware. Home Assistant supports thousands of devices, processes everything locally, and sends no data to any cloud service. You can use local cameras with Frigate for AI detection, Zigbee or Z-Wave sensors for home monitoring, and maintain complete control over your smart home without corporate surveillance.
Looking for a privacy-respecting alternative to Google Nest? We recommend:
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