What is a Security Key?
A security key is a physical hardware authentication device designed to authenticate access through one-time-password generation. Coinbase supports Universal Second Factor (U2F) security keys.
Supported security keys are available from a variety of vendors. Coinbase recommends buying a key that works best for your device and preferences.
Important Note: All hardware authentication devices are not Coinbase products. If you use any other supported security keys, you'll be subject to applicable terms and conditions of use for these products, including a separate privacy policy, which may differ from Coinbase's privacy policy. You should read and understand all applicable terms for these supported security keys before using them.
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Why is a security key more secure?
Dedicated physical hardware authentication device offer more protection than other 2-step methods like SMS and soft token TOTP apps because the credentials don't need to be stored on a networked device.
