YubiKey is a small USB authentication device which acts as a second line of defence. It removes the need to toggle between apps and jot down temporary codes, and reduces the potential risks associated with mobile and SMS notifications. And depending on your typing speed, YubiKey is up to four times quicker than entering a one-time password (OTP) yourself.
While Yubico's hardware based authentication supported Android devices for a number of years, iPhone support was made possible thanks to iOS 11, which rolled out last year. It enabled NFC (near-field communication) tag reading -- a feature which lets developers construct apps that utilize an OTP. To coincide with the launch, password management service LastPass has integrated YubiKey NEO support inside the most recent version of its iOS app.
A large majority of hacking breaches are due to weak passwords, but OTP solutions like YubiKey make your apps significantly harder to crack into. LastPass isn't the only service taking advantage of YubiKey's added physical security. Internet giants like Google are fond of it as well, and Facebook and Mozilla have recently opened their platforms to support the hardware security solution.