Google Nest Learning Thermostat (3rd Gen)
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Security Grade
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Google Nest Learning Thermostat (3rd Gen)
Category: Smart Thermostat • Model / Gen: 3 Nest Learning Thermostat 3rd Gen Release Date: 2015-10-01 • Status: In sale Classification Date: • [*`https://store.google.com/product/nest_learning_thermostat` Official Website] | |
Contents
Security Evaluation
1. Device Security
| Criterion | Value | Proof | Comment |
|---|---|---|---|
| Known hardware tampering | Rare | 🔗 Proof | Professional teardowns publicly available, but no exposed serial ports |
| Known vulnerabilities | Rare | 🔗 Proof | Google publishes Nest security bulletins; a small number of medium CVEs fixed |
| Prior attacks | None | 🔗 Proof | Not used in major botnets like Mirai; no large-scale abuse reported |
| Updatability | Very common | 🔗 Proof | Google pushes automatic OTA updates; update history published online |
| Category Score | Score: 2 / 3 | ||
2. System Security
| Criterion | Value | Proof | Comment |
|---|---|---|---|
| Authentication with other systems | Full | 🔗 Proof | Requires Google account login; supports 2FA and home member management |
| Communications | Encrypted with up-to-date encryption | 🔗 Proof | All cloud traffic uses TLS 1.2/1.3 |
| Storage | Encrypted with up-to-date encryption | 🔗 Proof | User data stored in Google cloud encrypted at rest |
| Category Score | Score: 1 / 3 | ||
3. User Authentication
| Criterion | Value | Proof | Comment |
|---|---|---|---|
| Account management | Full | 🔗 Proof | Supports home members, account removal, password change |
| Authentication | Secure | 🔗 Proof | No hardcoded credentials; Google account required to set up |
| Brute-force protection | Exist | 🔗 Proof | Google account has failed-attempt lockout and 2FA |
| Event logging | Access event logged | 🔗 Proof | Nest app logs device and account access events |
| Passwords | Require change after setup with complexity requirements | 🔗 Proof | No default password; Google account password with complexity required |
| Category Score | Score: 1 / 3 | ||
Technical Specifications
| Property | Details |
|---|---|
| Operating System & App | Nest OS (Companion App: Google Home App) |
| Hardware (CPU / GPU) | CPU: • GPU: |
| Memory & Storage | Memory: • Storage: |
| Power, Battery & Charging | Battery: None (wired to HVAC) • Power: 24V AC • Charging: |
| Display & Camera | Display: 240 x 240 pixel color display • Camera: none |
| Sound & Connectivity | Sound: none • Connectivity: Wi-Fi 802.11b/g/n, Bluetooth Low Energy, Thread |
| Physical (Dimensions & Mass) | Dimensions: 101 x 101 x 31 mm • Mass: 411 g |
