Cisco acquires Duo Security for $2.35b

Rob Powell / Telecom Ramblings
03 Aug 2018

Security is an ever-present concern when it comes to internet infrastructure, and hence it has been the focus of many an M&A move. Yesterday, the industry giant Cisco made another move in this arena, announcing its intent to acquire Duo Security.

Michigan-based Duo Security specializes in user and device authentication, vetting what wants to connect to one's applications and networks and thus reducing exposure to cyber attacks.

The company had raised some $118 million in venture funding, and were said to be generating over $100 million in annualized revenue earlier this year.

Cisco will be integrating that technology with its other network and cloud security platforms, adding to the portfolio and talent pool they have already been assembling. Cisco's security business generates some $2.34 billion or so of annualized revenue currently.

Cisco will be paying $2.35 billion in cash and assumed equity awards to acquire Duo. The deal is expected to close during the first quarter of Cisco's fiscal 2019.

Duo Security CEO and Co-founder Dug Song will continue to run the company as a division of Cisco within the company's Networking and Security Business.

This article was authored by Rob Powell and was originally posted on

Rob Powell is founder & editor of Telecom Ramblings, which was set up in 2008. The website is dedicated to discussing trends and developments in the telecom industry.

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