Duo Security vs YubiKey


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Duo Security
Two-factor authentication done right. Duo Security lets your users use their mobile phones to secure their logins, protecting your company from account takeover. Duo’s solution is cloud-based, which means there's no software to install, and no server to set up. Our patented technology and drop-in integrations enable you to seamlessly integrate Duo into your existing application login workflow.
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YubiKey
YubiKey enables strong, easy-to-use and affordable two-factor authentication with one-time passwords. Works instantly, no need to re-type pass codes from a device. Identified as a USB-keyboard, no client software or drivers needed
Face to face in the news:


2017 - Duo Security raised $70 million to defeate YubiKey


Duo Security announced $70 million Series D funding at a valuation of $1.17 billion. The Michigan-based SaaS company works with more than 10,000 companies. The company’s main product is a two-factor authentication app but Duo also offers other security products to secure users and their devices. Duo’s solution is cloud-based, which means there's no software to install, and no server to set up. The new investment will help accelerate the company’s technical innovations and operations as well as securing new partnerships. The conclusion is that Duo Security is now more solid in comparison to YubiKey