Google Nest Doorbell (Battery) (GA01318-US)

Security Grade

A-

Calculator v1

Google Nest Doorbell (Battery)

   Brand: Google Nest (Parent: Google LLC (Alphabet Inc.))

   Category: Doorbell • Model / Gen: 2nd generation (Nest's first battery-powered doorbell) GA01318-US

   Release Date: 2021-08-24 • Status: In sale

   Classification Date: 2026-10-25 • Official Website

Security Evaluation

Criterion	Value	Proof	Comment
Known hardware tampering	Rare	🔗 Proof	Google publishes tamper/theft guidance, offline alerts and anti-theft accessories, so physical removal is a real risk. No public exploit bypassing secure boot was found.
Known vulnerabilities	Rare	https://support.google.com/product-documentation/answer/14273332?hl=en 🔗 Proof	Nest security bulletins include Doorbell (battery) firmware updates with critical kernel flaws such as CVE-2019-17666; all were fixed via OTA. NVD has no model-specific entry.
Prior attacks	Rare	🔗 Proof	2019 Nest camera takeovers came from credential stuffing/password reuse; Google said Nest was not breached and blocked mass logins. No firmware-level in-the-wild attack was found.
Updatability	Very common	https://support.google.com/product-documentation/answer/13129842 🔗 Proof	Automatic OTA updates; Google promises at least 5 years of critical security updates from 2021-08-24. The page still marks currently receiving Yes, though the nominal window ended 2026-08-24.
Category Score	Score: 2 / 3

Criterion	Value	Proof	Comment
Authentication with other systems	Partial	https://support.google.com/googlehome/answer/9155535?hl=en 🔗 Proof	Google Account/OAuth integration with Google Home and Alexa only; no HomeKit or Matter support, so cross-ecosystem local authentication is limited.
Communications	Encrypted with up-to-date encryption	🔗 Proof	Spec sheet lists TLS/SSL with 128-bit AES and WPA3 Wi-Fi support. Certificate pinning and exact TLS versions are not published.
Storage	Encrypted with up-to-date encryption	https://store.google.com/ca/product/nest_doorbell_specs?hl=en-CA 🔗 Proof	Video is stored in the Google account cloud; the device keeps only a 1-hour backup. Transport uses TLS/AES; at-rest encryption details are not separately published.
Category Score	Score: 2 / 3

Criterion	Value	Proof	Comment
Account management	Full	https://support.google.com/accounts/answer/185839?hl=en 🔗 Proof	Uses Google Account with Admin/Member roles and granular Activity/Settings permissions; members can be removed.
Authentication	Secure	https://support.google.com/googlenest/answer/9220121?hl=en 🔗 Proof	Google account password plus optional 2-step verification/passkeys and risk-based sign-in challenges. 2SV is not mandatory for every account.
Brute-force protection	Exist	https://support.google.com/accounts/answer/185839?hl=en 🔗 Proof	Google blocks mass and repeated failed logins with temporary lockouts. Protection is at the account layer; the doorbell has no local keypad.
Event logging	Access event logged	https://support.google.com/googlenest/answer/9220121?hl=en 🔗 Proof	Doorbell presses and person/package events create video history: 3 hours free, 30/60 days with Nest Aware, plus activity alerts.
Passwords	Require change after setup with complexity requirements	🔗 Proof	No default password; account creation requires a self-set password. Google rejects weak or previously used passwords and recommends 12+ chars; no forced rotation.
Category Score	Score: 1 / 3

Property	Details
Operating System & App	N/A (proprietary embedded firmware; no public OS name) (Companion App: Google Home (Android/iOS); Google Assistant and Alexa voice control)
Hardware (CPU / GPU)	CPU: N/A • GPU: N/A
Memory & Storage	Memory: N/A • Storage: Up to 1 hour on-device event-video backup; cloud history 3 h free, 30/60 days with Nest Aware
Power, Battery & Charging	Battery: Built-in rechargeable 6 Ah, 3.65 V lithium-ion • Power: Battery; optional 8-24 VAC, 10 VA, 50/60 Hz doorbell wiring • Charging: USB-C (USB-C to USB-A cable included); trickle charging when wired
Display & Camera	Display: N/A (LED status ring only) • Camera: 1/3-inch 1.3 MP color sensor; 960x1280 up to 30 fps; 145-degree diagonal; 6x digital zoom; HDR; 4x 850 nm IR night vision(~10 ft)
Sound & Connectivity	Sound: Speaker and microphone; two-way audio with noise cancellation • Connectivity: Wi-Fi 802.11a/b/g/n/ac (2.4/5 GHz, WPA3 supported); Bluetooth Low Energy
Physical (Dimensions & Mass)	Dimensions: 160 x 46 x 24.1 mm (6.3 x 1.8 x 0.95 in) • Mass: 206 g (7.3 oz)

Student assignment submission for IoT security assessment.