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Duo Security integrates seamlessly into your VPNs, Unix and Windows servers, and web applications to provide strong two-factor authentication for your entire organization.


Protect Your VPN With Two-Factor Authentication From Duo Security

Duo integrates with all major SSL VPNs to protect remote access. Learn more »


Secure Local and Remote Unix Logins With Two-Factor Authentication From Duo Security

Protect local and remote logins with our open source Unix integration. Learn more »

Web Applications

Add Two-Factor Authentication to Your Web Applications with Duo Security

Use our SDK to add two-factor authentication to your web applications. Learn more »


Duo also integrates with Microsoft Outlook Web App (OWA), Remote Desktop (RDP), and Threat Management Gateway (TMG). Learn more »


Duo Security helps companies comply with FFIEC, PCI DSS, NIST, and HIPAA standards. Learn more about how Duo Security can help your business: