What is a YubiKey and how do I use it?
A YubiKey is a key-sized device that you can plug into your computer's USB slot to provide another layer of security when accessing your LastPass Account. YubiKeys are a secure, easy to use, two-factor authentication device that are immune from replay-attacks, man-in-the-middle attacks, and a host of other threat vectors.
Once you have purchased and received your YubiKey, you can enable the device and manage your preferences by launching your LastPass Icon > My LastPass Vault > Account Settings link and clicking on the 'YubiKeys' tab:
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