Physical security key - Google's strongest account security

These days we need to set up another verification method besides password in case Google denies access when we try to log in on a new device. Now we can secure our Google account with physical security keys. Google claims that this is their strongest defense against phishing, stronger than the traditional 2-step verification.


the Physical Keys

The physical keys can be connected to mobile devices via Bluetooth, or to PCs via USB. The physical keys follow an open authentication standard called U2F, created by Google and Yubico, with contribution from NXP Semiconductors, and now hosted by the FIDO Alliance.

U2F security keys are supported by Google Chrome since version 38, and Opera since version 40, and Firefox since version 57. No drivers or client software is needed.

The security keys can be used with multiple Google accounts and other services that support the U2F protocol. For more info, see https://www.yubico.com/solutions/fido-u2f/.


Where to Find the Keys

To enroll, you'll need to purchase two security keys and register them to your Google account.

They can be bought on Amazon.com. Google recommends that you buy a main key and a backup key.


Register the keys

From that on, you are required to use a physical key in addition to your password whenever you log back your account after logging out or log in on a new device. Thus even if your password is leaked, anyone else without the physical key won't be able to access your account.

Go to the official webpage google.com/advancedprotection/ to get started.


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