Google pulled the plug on old Nest thermostats, but not the data mine (Upda

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TL;DR

• Google shut off remote control functionality in first- and second-generation Nest thermostats in October.
• After the downgrade, security researcher Cody Kociemba created a solution to bring these old Nest devices back online.
• Through the project, Kociemba learned that these thermostats are still sending Google data, despite the company ending support.

Update: November 17, 2025 (6:55 PM ET): Google has reached out to Android Authority and provided the following statement:

The Nest Learning Thermostat (1st and 2nd Gen) is no longer supported in the Nest and Home apps, but temperature and scheduling adjustments can still be made directly on the unit. These devices will soon be unpaired and removed from all user accounts. Diagnostic logs, which are not tied to a specific user account, will continue to be sent to Google for service and issue tracking. Users who prefer to stop providing these logs can simply disconnect their device from Wi-Fi via the on-device settings menu.

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