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Security keys use standards such as FIDO2 and WebAuthn to confirm sign-ins. Because the key verifies the real website, it can resist many phishing attacks that trick users into sharing passwords or one-time codes.
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- Connector: Choose USB-C or USB-A based on your devices; NFC can make phone use easier.
- Service support: Confirm your important email, cloud, financial, and work accounts support security keys or passkeys.
- Backup: Register two keys when possible and keep the spare in a secure separate location.
- Durability: Consider water resistance and a strong keyring attachment if it will travel daily.
Plan recovery first. Save account recovery codes securely before making a hardware key your primary sign-in method.
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