US-based authentication-as-a-service provider Duo Security raised $5m in series B financing on Tuesday from corporate venturing unit Google Ventures, and venture capital firms True Ventures and Resonant Venture Partners. True and Resonant come into the round as existing investors, having previously funded Duo’s $1m series A round in August 2010. Duo provides a service that…

The rest of this content is only accessible to Global Venturing Subscribers.

This content is only accessible to subscribers. If you are a subscriber, please sign in. Otherwise, if you would like to try before you buy and haven't previously taken out a free trial, you can do so below. You can also see details on subscriptions by clicking the Subscription Options button.