What is a Security Key?

What is a Security Key?#

A Security Key is a physical device used for user authentication, offering a higher level of security compared to traditional password. It can function as a standalone authentication factor or as part of a two-factor authentication system.

Advantages are:

• Ease of Use: Simply plug in or tap (if NFC-enabled) and press a button to authenticate.
• Compatibility: Supporting FIDO, FIDO2, and WebAuthn standards.
• Versatility: Can be used across various services and platforms.
• Physical Security: Hardware is needed to access a service.
• Phishing protection: Reduces the risk of phishing and remote hacking attempts.

Key Takeaways#

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Security Keys are an integral part of the evolving digital security landscape. They are especially crucial in the context of FIDO2, a new login procedure aimed at replacing traditional passwords.

Technical Details#

• Types: USB, NFC, Bluetooth
• Mechanism: Holds a secret cryptographic key that's unique and non-duplicable.
• Application: Used in services like Microsoft, Google, GitHub, and more.

Practical Use Cases#

• Phishing Protection: By creating unique credentials for each service, it safeguards against phishing attacks.
• Multiple Registrations: Users can register multiple security keys for redundancy.
• Theft Protection: Though physical theft is possible, keys like YubiKey can be PIN-protected for additional security.

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Security Key FAQs#

How does a Security Key enhance online security?#

• A Security Key provides a physical layer of security for digital authentication, making unauthorized access significantly more challenging.

Can Security Keys replace passwords entirely?#

• Yes, they can either replace passwords (single-factor) or supplement them (two-factor) for stronger security.

What if I lose my Security Key?#

• It's recommended to have a backup key or alternative authentication method. Service-specific recovery options vary.

Are Security Keys prone to hacking or cloning?#

• No, the cryptographic keys in Security Keys are designed to be secure and unique, preventing cloning or remote hacking.

Can a Security Key be used across different devices and services?#

• Yes, they are designed for versatility and can be used with various devices and services that support FIDO or WebAuthn protocols.

About Corbado

Corbado is the Authentication Intelligence Platform for CIAM teams running consumer authentication at scale. We help you see what IDP logs and generic analytics tools can't: where passkeys, passwords, OTP, social login and fallback journeys succeed, stall or fail, which devices and browsers create friction, and when an OS update silently breaks login. Two products: Corbado Observe layers process mining and observability across authentication journeys. Corbado Connect adds managed passkeys with analytics built in alongside your IDP. VicRoads runs passkeys for 5M+ users with Corbado (+80% passkey activation). Talk to a Passkey Expert →