what is passkey in google

Passkey is a digital credential that allows users to authenticate without having to enter a username or password, or provide any additional authentication factor. It is a simple and secure way to sign in to both your Google Account and all the sites. Passkeys are cryptographic key pairs that are specific to a website. One half is shared with the website, and the other half is private and stored on your device or in your password manager. Passkeys are connected to the app or website they were created for, so you can never be tricked into using your passkey to sign in to a fraudulent app or website. Passkeys are a safer and easier alternative to passwords. With passkeys, users can sign in to apps and websites with a biometric sensor (such as a fingerprint or facial recognition), PIN. Passkeys are resistant to online attacks like phishing, making them more secure than things like SMS one-time codes. Passkeys are available across all Android apps and are stored in your Google Password Manager. To use passkeys, your device must have Android 9.0 or up and have a screen-lock turned on.