What is a security key?

What is a security key?

A security key is a physical device that is used for authentication and authorization purposes. It is a form of two-factor authentication that provides an additional layer of security beyond traditional username and password authentication. Security keys are designed to be used in conjunction with password-based authentication systems to provide an extra layer of protection against account hacking and unauthorized access.

Security keys work by generating a unique digital signature for each authentication request. The digital signature is generated using a secret key that is stored on the security key. This key is unique to the security key and cannot be replicated or copied, making it virtually impossible for hackers to gain access to an account using traditional hacking methods.

There are two main types of security keys: USB-based security keys and NFC-based security keys. USB-based security keys plug into the USB port of a computer or mobile device, while NFC-based security keys use near-field communication (NFC) technology to wirelessly communicate with the device.

Security keys have become increasingly popular in recent years due to their effectiveness in preventing account hacking and their ease of use. Many major technology companies, including Google, Microsoft, and Dropbox, now support security keys as a form of two-factor authentication.

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