How Does a Hardware Security Key Like YubiKey Work?

☝️ Hardware security keys like YubiKey provide an extra-secure level of two-factor authentication.
☝️ How does a YubiKey work?
After associating a hardware security key with your online account, you’ll be asked to provide it later if two-factor authentication is required. These keys operate by provided securely encrypted one-time information that can be confirmed as authentic by the online service, proving you are who you say you are, or that you at least are in possession of the proper security key.
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Chapters
0:00 Hardware Security Key
0:30 Two factor authentication
1:40 Hardware key
3:00 How it works
5:00 How it’s more secure
5:55 Losing your second factor
8:40 Multiple two-factor
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