Security Case Study: Duo

Securing 5 million access attempts a month

Cisco uses zero-trust security from Duo to protect application access for more than 100,000 users and 170,000 devices globally. With Duo, Cisco secures more than 5 million access attempts a month across hundreds of applications, and gains visibility into who and what is on the network.



  • Secure access attempts by employees, contractors, and vendors located all over the world
  • Implement zero-trust approach to protect all applications by validating users and devices
  • Use security tools that foster productivity while protecting critical data and resources


  • Prioritized change management and communication strategy
  • Enabled flexible self-service to make it easy for users to enroll
  • Integrated into Office 365 rollout for a secure, borderless experience


  • Protecting over 100,000 employees, contractors, and vendors--only 1 percent needed support
  • Continuously validating health and trust of over 170,000 access devices
  • Visibility into who and what is on the network, enabling faster responses to risks

Building resilience with zero trust security

Moving to a Zero Trust model is an opportunity to move into a much better user workflow. Plus, when the geopolitics brought us new problems, Zero Trust from Duo was something that we were able to leverage in order to match the risks that we saw with the appropriate security controls.

Brad Arkin, SVP, Chief Security and Trust Officer

Who is Duo Security?

Industry: Cybersecurity
Location: Ann Arbor, Michigan
Size: 800+ employees
Website: Duo