Duo Security by Cisco

Duo Security software reviews, alternatives, pricing, & feature 2026

4.6/5 from 320 reviews and ratings
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Computer Security Software

Duo Security reviews and summary

Duo Security, now part of Cisco, is a cloud-based access security platform renowned for its user-friendly multi-factor authentication (MFA) and device trust solutions. Its core purpose is to verify the identity of users and the security health of their devices before granting access to applications—a fundamental principle of zero-trust security. Duo's MFA is famously easy to deploy and use, offering push notifications, one-time passcodes, and biometric options. Beyond authentication, it provides deep visibility into every access attempt, including device type, operating system, and patch status, allowing administrators to enforce policies that block access from non-compli... IT security teams, system administrators, and organizations of all sizes—fro...

Best for

IT security teams, system administrators, and organizations of all sizes—from SMBs to large enterprises—seeking to implement strong, phishing-resistant MFA quickly and easily while gaining critical visibility into the devices accessing their corporate resources to support a zero-trust security initiative.

Starting price $3.00 Per-Month
Vendor Cisco
Key takeaways

Our verdict

Duo Security is a best-in-class solution that successfully makes strong security accessible and manageable. Its blend of powerful MFA, device insight, and ease of use makes it an outstanding choice for any organization looking to significantly improve its access security posture with minimal user disruption.

Quick facts

Duo Security at a glance

Overall rating 4.6/5
Reviews 320
Starting price $3.00 Per-Month
Vendor Cisco
Founded 2010
Location United States
Ratings

Duo Security ratings

Ratings in this section summarize available rating data. Software reviews are shown separately when users submit reviews.

4.6

/
5

320 reviews and ratings

Rating summary

Star distribution will appear after software reviews are submitted.

Decision notes

Duo Security pros and cons

Potential strengths

  • The profile focuses on multi-factor authentication, endpoint visibility, device control, and trusted access.
  • Duo Security is positioned for businesses across SMB, mid-market, and enterprise segments.
  • Listed support options include email help desk, FAQ forum, knowledgebase, phone support, and chat.

Points to verify

  • Confirm which applications, VPNs, and user groups need MFA coverage before rollout.
  • Review device visibility and policy controls with the teams responsible for endpoint standards.
  • Test the sign-in flow with both technical and non-technical users to check adoption risk.
  • Ask how reporting and access policies support your zero trust plans.
Buyer fit

Who uses Duo Security?

IT security teams, system administrators, and organizations of all sizes—from SMBs to large enterprises—seeking to implement strong, phishing-resistant MFA quickly and easily while gaining critical visibility into the devices accessing their corporate resources to support a zero-trust security initiative.

Feature research

Duo Security features

These are common features buyers compare in Computer Security Software. Product-specific availability should be confirmed with the vendor.

Access Control

Helps buyers evaluate how access, control, and evidence are handled for sensitive or regulated work.

Anti Spam

Helps buyers judge whether anti spam fits the way their team handles computer security work.

Anti Virus

Helps buyers judge whether anti virus fits the way their team handles computer security work.

Audit Trail

Gives managers a clearer view of activity, exceptions, and trends so they can spot issues before they turn into rework.

Compliance Management

Helps buyers evaluate how access, control, and evidence are handled for sensitive or regulated work.

Data Security

Helps buyers evaluate how access, control, and evidence are handled for sensitive or regulated work.

Financial Data Protection

Connects money-related work with the rest of the computer security process so charges, approvals, and records are easier to review.

Maintenance Scheduling

Helps buyers judge whether maintenance scheduling fits the way their team handles computer security work.

Network Security

Helps buyers evaluate how access, control, and evidence are handled for sensitive or regulated work.

Real Time Monitoring

Gives managers a clearer view of activity, exceptions, and trends so they can spot issues before they turn into rework.

Virus Definition Update

Helps buyers judge whether virus definition update fits the way their team handles computer security work.

Vulnerability Protection

Helps buyers judge whether vulnerability protection fits the way their team handles computer security work.

Pricing

Duo Security pricing

Starting price $3.00 Per-Month

Pricing model: Per User

Pricing can change. Confirm current plans and terms with the vendor.

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Compare

Duo Security alternatives

Compare Duo Security with other Computer Security Software tools that buyers often evaluate.

Malwarebytes Endpoint Protection by Malwarebytes

4.7 (2.2K)

Malwarebytes Endpoint Protection helps teams in computer security software by giving them one practical place to keep work moving. It is most useful when ownership, handoffs, and d...

Kaspersky Endpoint Security by Kaspersky

4.4 (938)

Kaspersky Endpoint Security helps teams in computer security software by giving them one practical place to keep work moving. It is most useful when ownership, handoffs, and deadli...

NordVPN by Nord Security

4.6 (880)

NordVPN helps teams in computer security software by giving them one practical place to keep work moving. It is most useful when ownership, handoffs, and deadlines are already defi...

Folder Lock by NewSoftwares

4.5 (575)

Folder Lock is for buyers who need a straightforward way to protect local files, folders, and drives with passwords, encryption, and real-time backup rather than a broader endpoint...

TunnelBear by TunnelBear

4.5 (420)

TunnelBear is a team VPN option for people who need a simpler way to route internet traffic through encrypted tunnels when working from home, travel spots, or public networks.

Bitdefender GravityZone by bitdefender

4.6 (160)

Bitdefender GravityZone is meant for teams that run mixed infrastructure and need a security layer across endpoints, servers, and virtualized workloads. It focuses on preventing, d...

NinjaOne by NinjaOne

4.9 (145)

NinjaOne is worth a look for MSPs and IT teams that want RMM, endpoint security, patching, backup, alerts, and scripting in one place. Check how its workflows fit your technician r...

Software reviews

Duo Security software reviews

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FAQ

Duo Security FAQs

Duo Security is positioned for organizations that need multi-factor authentication, trusted access, and device visibility across business applications.

Duo Security is computer security software focused on access protection, multi-factor authentication, endpoint visibility, and device trust.

Yes. The profile lists Android, iPhone, and iPad as enabled platform options, along with cloud, SaaS, and web-based access.

The profile mentions MFA, trusted access, endpoint visibility and control, user trust, device trust, and support for a zero trust security model.

The profile lists email help desk, FAQ forum, knowledgebase, phone support, chat, in-person training, live online training, webinars, and documentation.

Buyers should verify application coverage, MFA methods, device policy controls, user rollout plans, reporting needs, and how Duo fits existing identity tools.
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