Cisco Duo is a cloud-based identity security platform safeguarding critical resources for any user and device worldwide. Known for its ease of use, Duo offers seamless protection across multi-cloud, hybrid, and on-premises environments.



| Product | Market Share (%) |
|---|---|
| Cisco Duo | 6.0% |
| Microsoft Entra ID | 9.6% |
| Yubico YubiKey | 5.7% |
| Other | 78.7% |
| Type | Title | Date | |
|---|---|---|---|
| Category | Authentication Systems | Dec 29, 2025 | Download |
| Product | Reviews, tips, and advice from real users | Dec 29, 2025 | Download |
| Comparison | Cisco Duo vs Microsoft Entra ID | Dec 29, 2025 | Download |
| Comparison | Cisco Duo vs Fortinet FortiAuthenticator | Dec 29, 2025 | Download |
| Comparison | Cisco Duo vs Fortinet FortiToken | Dec 29, 2025 | Download |
| Title | Rating | Mindshare | Recommending | |
|---|---|---|---|---|
| Microsoft Entra ID | 4.3 | 9.6% | 95% | 266 interviewsAdd to research |
| Cisco Umbrella | 4.4 | N/A | 97% | 122 interviewsAdd to research |
| Company Size | Count |
|---|---|
| Small Business | 30 |
| Midsize Enterprise | 16 |
| Large Enterprise | 30 |
| Company Size | Count |
|---|---|
| Small Business | 353 |
| Midsize Enterprise | 214 |
| Large Enterprise | 488 |
Cisco Duo is designed to secure access with identity-first protection and provides extensive visibility throughout an organization's identity ecosystem. Offering multi-factor authentication, Duo facilitates easy integration and management, allowing teams to protect data effectively on VPNs, applications, and networks. Its single-pane management improves security processes while enhancing trust, making it suitable for diverse IT infrastructures.
What are the key features of Cisco Duo?In industries like education and finance, Cisco Duo is widely employed to secure multi-factor authentication across platforms such as email, databases, and servers. Its integration capabilities with Microsoft 365, Active Directory, and VPNs like AnyConnect are instrumental in verifying user identities using mobile apps or OTPs, catering effectively to both remote and on-premise environments.
Cisco Duo was previously known as Duo Security.
| Author info | Rating | Review Summary |
|---|---|---|
| Information Technology Contractor at Insight global | 5.0 | I've used Cisco Duo extensively as IT support and later personally, finding it easy to set up, scalable, and reliable, with smooth MFA features and strong support; most issues stemmed from administrative handling, not the product itself. |
| Senior Network Engineer at a educational organization with 1-10 employees | 4.5 | I use Cisco Duo primarily for MFA, especially for email, appreciating its granular policy controls. It enhances security by preventing unauthorized access and credential sharing. My only complaint is the lack of alerts for telephony credits. |
| Chief Technology Officer at University of Redlands | 5.0 | We use Cisco Duo for multi-factor authentication to secure our assets. The Verified Duo Push feature enhances security. Although integration with Active Directory could improve, the setup is easy, and Duo outperforms alternatives like Microsoft Entra ID. |
| Senior Network Engineer at Shentel | 4.0 | I use Cisco Duo for centralized authentication, significantly saving time during onboarding and offboarding. While its Splunk integration could improve, its streamlined server management provides a notable ROI. We didn’t consider other solutions, opting directly for Duo. |
| Senior Network Engineer Specialist at Zenith Comp Co.,Ltd. | 5.0 | I implemented Cisco Duo for VPN MFA and found it easy to deploy, cost-effective, and highly integrative. It's stable, scalable, and supports secure, passwordless access. Support is excellent, and customers benefit from per-user licensing across multiple applications. |
| Network Engineer at West Kentucky Rural Electric Cooperative Corporation, Inc. | 4.0 | I use Cisco Duo for MFA, appreciating its online and offline authentication features, which enhance security even when users travel. It needs smoother integration and push notifications. While helpful, it impacts productivity, lacking visible ROI due to login time. |
| Staff Network Engineer at a manufacturing company with 10,001+ employees | 4.0 | Cisco Duo enhances security primarily through its user-friendly phone notification system, particularly benefiting older users. While effective, occasional delays in notifications require improvements. Despite not seeing an ROI, I value its flexibility and ease of setup over alternatives. |
| Director, Technology at Deer Creek High School | 4.0 | I manage security for various departments in a school district, and Cisco Duo's ease of use and strong authentication system have improved password management. While I see no immediate ROI, the enhanced security provides peace of mind. |