Tenable vs Duo Security (Cisco)
An honest, context-aware comparison. No affiliate links. No paid placements. Just the data that helps you decide.
Tenable
Exposure management platform — vulnerability management, cloud security, OT, and attack surface across the enterprise.
Duo Security (Cisco)
Multi-factor authentication and secure access platform
Side-by-Side Comparison
Objective metrics, no spin.
Enterprise vulnerability management programs that need continuous scanning across infra, cloud, identity, and operational technology.
Small engineering teams — Tenable's TCO and operational overhead are aimed at dedicated security teams, not developers.
For adding MFA to protect apps and VPN. Very user-friendly, great for organizations starting with MFA.
If you need full IAM platform (use Okta) or already have MFA through Microsoft/Google.
Both suited for: large, enterprise companies
Since both tools target large and enterprise companies, your decision should hinge on the specific use case above rather than company fit. Try the AI Advisor to get a recommendation tailored to your exact stack.
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Other Cybersecurity Tools to Consider
If neither is the right fit, these are the next best alternatives in the same category.