Duo Security alternatives

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.
Duo Security alternatives are:
Google Authenticator, Authy, Toopher, YubiKey
Here are the latest news about Duo Security:

2015 Duo Security unveiled new service to protect enterprises against data breaches

Duo Security, the two-factor authentication startup is releasing a new product, called Duo Platform, which will enable IT teams to create policies and automate enforcement of their networks while also tracking the security profiles of devices trying to access their systems. Duo’s new Platform product takes advantage of its prior learnings and extends them deeper into customer networks. It enables IT administrators to create more granular rules around who can access its applications and under what conditions. It provides real-time insights into devices trying to connect to their applications and can block data breaches as they’re happening by detecting access-related security threats.

2014 Two-Factor authentication service Duo raises $12 million

Duo Security, the cloud service providing secure but easy-to-use two-factor authentication technology, has raised $12 million in Series B financing. With Duo's authentication technology users can easily approve a mobile device and authenticate with one tap via push notification. While Duo is a key differentiator for the company, it also supports more traditional forms of two-factor authentication, including hardware-based tokens and SMS passcodes. Thanks to its wide support for a variety of apps and flexibility for enterprise deployment, Duo Security has been growing fast, now supporting more than 5,000 enterprise customers. In the tech world, those customers include names like Facebook, Etsy, Box, Yelp, and Threadless.