What is Google Password Manager? Definition, AAGUID and Role in WebAuthn

Google Password Manager is a tool integrated within Chrome and Android that helps users securely save, manage, and autofill their passwords and passkeys across websites and applications. This password manager enhances online security by creating strong, unique passwords and passkeys, and protecting them with Google’s end-to-end encryption.

The AAGUID of Google Password Manager is ea9b8d66-4d01-1d21-3ce4-b6b48cb575d4.

This identifier is used to identify the Google Password Manager as an authenticator in passkey- / WebAuthn-based systems-. Read more about this in the article about AAGUID.

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Google Password Manager simplifies the task of managing online credentials while improving security with several key features:

• Save Passwords and Passkeys: Automatically save credentials to your Google Account.
• Autofill: Seamlessly fill in passwords and passkeys (Conditional UI) on websites and apps without needing to remember them.

• Strong Password and Passkey Suggestions: Generate and save strong passwords and passkeys directly within your account.
• Security Alerts: Receive notifications for compromised passwords and recommendations for immediate updates.

• Privacy and Encryption: Uses industry-leading end-to-end encryption to protect your data from breaches.
• Data Collection: Collects minimal data such as page views and crash logs for improving service and reliability.

Google Password Manager also supports passkeys, a more secure replacement for passwords, on Android and Chrome. Passkeys can be synchronized across devices within the same ecosystem (here: Google Password Manager), improving security and user convenience.

• Passkeys created on Android are stored in Google Password Manager and are available to all Android devices linked to the same Google account.
• On Chrome, passkeys are used to sign in and are stored locally on macOS and Windows devices without synchronization to other devices (yet).

• Android: Supports passkeys on devices running Android 9 or higher and can sync them to other Android devices.
• Windows: Stores passkeys locally in Windows Hello without synchronization (Google Password Manager displays these passkeys in its settings though).
• macOS: Utilizes primarily iCloud Keychain to store and sync passkeys across Apple devices, or stores them locally. When using Chrome passkeys can be stored in the Chrome profile but are not synced to other devices (see Chrome on Mac).
• iOS/iPadOS: Uses iCloud Keychain to store and sync passkeys. When using Chrome passkeys can be stored in the Chrome profile but are not synced to other devices.

• Convenience: Built into Google Chrome, requiring no additional installations.
• Cost: Completely free to use, providing a cost-effective password and passkey management solution.

• Limited Functionality: Lacks advanced features like secure password sharing, dark web monitoring, and comprehensive cross-platform synchronization (currently only Android-to-Android supported in syncing passkeys across devices and platforms).

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• Google Password Manager is an integrated tool within a Google account that helps users manage their passwords and passkeys by securely saving and autofilling credentials across websites and applications.

• Google Password Manager enhances online security by generating strong, unique passwords and passkeys for your accounts and storing them behind Google’s advanced encryption, reducing the risk of theft.

• Google Password Manager can autofill passwords and passkeys (Conditional UI) on websites that support autofill (or passkeys) functionality. However, it may not autofill credentials on sites that have specific security measures to block autofill.