Duo Security

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We are Duo, and we’re here to democratize security. We were born from a hacker ethos and a desire to make the Internet a secure place. Our mission is to protect the mission of our customers by making security simple for everyone. Our team is our secret weapon. We’re a diverse crew of makers and builders, skaters and coders, filmmakers and DJ’s, teachers and students brought together by a shared belief in adding value to the world. That diversity allows us to bring an empathetic approach to solve some of the most complex global business and security challenges faced today. Our roots and values were forged in the Midwest. We believe in enabling and empowering people to follow their passion, inside and outside of the office. Change is a constant we anticipate and embrace. These are some of the things that make us unique and drive our team to be the most loved company in security. Duo is now a part of Cisco.
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Duo Security Questions

News

Getting Started with Duo - Duo Security

Getting Started with Duo Duo Security

Duo for Outlook Web App (OWA) on Exchange SE - Duo Security

Duo for Outlook Web App (OWA) on Exchange SE Duo Security

Duo Two-Factor Authentication for OpenVPN - Duo Security

Duo Two-Factor Authentication for OpenVPN Duo Security

Synchronizing Users and Admins into Duo from Active Directory - Duo Security

Synchronizing Users and Admins into Duo from Active Directory Duo Security

Microsoft AD FS for Windows 2016 and later - Duo Security

Microsoft AD FS for Windows 2016 and later Duo Security

Duo Two-Factor RADIUS Authentication for Cisco ISE - Duo Security

Duo Two-Factor RADIUS Authentication for Cisco ISE Duo Security

Duo Single Sign-On for Microsoft 365 - Duo Security

Duo Single Sign-On for Microsoft 365 Duo Security

Duo Two-Factor Authentication for Palo Alto GlobalProtect RADIUS - Duo Security

Duo Two-Factor Authentication for Palo Alto GlobalProtect RADIUS Duo Security

Research insights: 4 trends reshaping identity security in 2025 - Duo Security

Research insights: 4 trends reshaping identity security in 2025 Duo Security

Duo Access Gateway for Linux - Duo Security

Duo Access Gateway for Linux Duo Security

RADIUS 2FA for Cisco ASA SSL VPNs - Duo Security

RADIUS 2FA for Cisco ASA SSL VPNs Duo Security

Duo Access Gateway for Windows - Duo Security

Duo Access Gateway for Windows Duo Security

Duo Two-Factor Authentication for Microsoft Entra ID External Authentication Methods (EAM) - Duo Security

Duo Two-Factor Authentication for Microsoft Entra ID External Authentication Methods (EAM) Duo Security

Duo Multifactor for Okta - Duo Security

Duo Multifactor for Okta Duo Security

Duo Authentication for Microsoft Remote Desktop Web on Windows 2016 and Later - Duo Security

Duo Authentication for Microsoft Remote Desktop Web on Windows 2016 and Later Duo Security

Duo Access Gateway with Remembered Devices - Duo Security

Duo Access Gateway with Remembered Devices Duo Security

Duo Two-Factor Authentication for NetMotion Mobility - Duo Security

Duo Two-Factor Authentication for NetMotion Mobility Duo Security

Duo Access Gateway Video Overview - Duo Security

Duo Access Gateway Video Overview Duo Security

Duo Two-Factor Authentication with LDAPS for Cisco ASA SSL VPN with Browser and Secure Client - Duo Security

Duo Two-Factor Authentication with LDAPS for Cisco ASA SSL VPN with Browser and Secure Client Duo Security

Duo Two-Factor Authentication with LDAPS for Pulse Connect Secure Access SSL VPN (Deprecated) - Duo Security

Duo Two-Factor Authentication with LDAPS for Pulse Connect Secure Access SSL VPN (Deprecated) Duo Security

Security Updates for HIPAA Compliance - Duo Security

Security Updates for HIPAA Compliance Duo Security

Duo Mobile App | Secure Mobile Authentication - Duo Security

Duo Mobile App | Secure Mobile Authentication Duo Security

Complete Identity Security & MFA Solutions | Duo Security - Duo Security

Complete Identity Security & MFA Solutions | Duo Security Duo Security

Legacy authentication protocols: Why RADIUS is (still) important - Duo Security

Legacy authentication protocols: Why RADIUS is (still) important Duo Security

Duo Two-Factor Authentication for OneLogin - Duo Security

Duo Two-Factor Authentication for OneLogin Duo Security

Verified Duo Push makes MFA more secure - Duo Security

Verified Duo Push makes MFA more secure Duo Security

Duo Authentication for Microsoft Remote Desktop Web and Remote Desktop Gateway on Windows 2016 and Later - Duo Security

Duo Authentication for Microsoft Remote Desktop Web and Remote Desktop Gateway on Windows 2016 and Later Duo Security

Introducing Cisco AI Assistant for Duo - Duo Security

Introducing Cisco AI Assistant for Duo Duo Security

Duo Passport’s patent-pending defense against session hijacking - Duo Security

Duo Passport’s patent-pending defense against session hijacking Duo Security

Announcing Identity Intelligence With Duo - Duo Security

Announcing Identity Intelligence With Duo Duo Security

Duo Identity Verification & Social Engineering - Duo Security

Duo Identity Verification & Social Engineering Duo Security

Meet the New Duo IAM – Duo Blog - Duo Security

Meet the New Duo IAM – Duo Blog Duo Security

MFA fatigue: What it is and how to respond - Duo Security

MFA fatigue: What it is and how to respond Duo Security

Announcing Passwordless Authentication for Windows Logon (now Generally Available) - Duo Security

Announcing Passwordless Authentication for Windows Logon (now Generally Available) Duo Security

Take the guesswork out of policy evaluation with Duo’s Policy Calculator - Duo Security

Take the guesswork out of policy evaluation with Duo’s Policy Calculator Duo Security

Duo Protection for Meraki Dashboard with Duo Access Gateway - Duo Security

Duo Protection for Meraki Dashboard with Duo Access Gateway Duo Security

Duo Protection for Microsoft 365 with Duo Access Gateway - Duo Security

Duo Protection for Microsoft 365 with Duo Access Gateway Duo Security

Going passwordless with py_webauthn - Duo Security

Going passwordless with py_webauthn Duo Security

Duo Trusted Endpoints - Ivanti/LANDESK Certificate Deployment - Duo Security

Duo Trusted Endpoints - Ivanti/LANDESK Certificate Deployment Duo Security

RADIUS 2FA with RADIUS Challenge Text Prompt for Cisco ASA SSL VPNs - Duo Security

RADIUS 2FA with RADIUS Challenge Text Prompt for Cisco ASA SSL VPNs Duo Security

Duo Protection for Palo Alto Networks SSO with Duo Access Gateway - Duo Security

Duo Protection for Palo Alto Networks SSO with Duo Access Gateway Duo Security

3 steps to prevent a case of compromised credentials - Duo Security

3 steps to prevent a case of compromised credentials Duo Security

Duo 2FA for Microsoft UAG (Deprecated) - Duo Security

Duo 2FA for Microsoft UAG (Deprecated) Duo Security

Preventative care for healthcare industry data - Duo Security

Preventative care for healthcare industry data Duo Security

Enhance Identity Governance and Protection on AWS using Cisco Duo IAM - Amazon Web Services

Enhance Identity Governance and Protection on AWS using Cisco Duo IAM Amazon Web Services

Secure BYOD without an MDM - Duo Security

Secure BYOD without an MDM Duo Security

VMware Fixes Critical Aria Automation Bug | Decipher - Duo Security

VMware Fixes Critical Aria Automation Bug | Decipher Duo Security

2024 Duo Trusted Access Report: 5 Key Findings for MSPs to Strengthen Security - MSSP Alert

2024 Duo Trusted Access Report: 5 Key Findings for MSPs to Strengthen Security MSSP Alert

Why Role-Based Access Control is Critical to Your Security Stack - MSSP Alert

Why Role-Based Access Control is Critical to Your Security Stack MSSP Alert

Cisco Duo launches new IAM solution for AI-era threats - Investing.com

Cisco Duo launches new IAM solution for AI-era threats Investing.com

Cisco Announces Intent to Acquire Duo Security - Cisco Newsroom

Cisco Announces Intent to Acquire Duo Security Cisco Newsroom

IUP students, faculty share opinions on DUO security - thepenn.org

IUP students, faculty share opinions on DUO security thepenn.org

Bypassing Two-Factor Authentication on OWA & Office365 Portals - Black Hills Information Security, Inc.

Bypassing Two-Factor Authentication on OWA & Office365 Portals Black Hills Information Security, Inc.

Sponsored Content: Duo Form Debuts Universal Shower Kit - RV PRO

Sponsored Content: Duo Form Debuts Universal Shower Kit RV PRO

Duo Security Delivers 135% Annual Recurring Revenue Growth and Brings Aboard Top Security Leaders from Facebook, Etsy, 451 Research, Workday and More - PR Newswire

Duo Security Delivers 135% Annual Recurring Revenue Growth and Brings Aboard Top Security Leaders from Facebook, Etsy, 451 Research, Workday and More PR Newswire

Duo Security Hires Ambrosia Vertesi as Vice President of People & Culture - PR Newswire

Duo Security Hires Ambrosia Vertesi as Vice President of People & Culture PR Newswire

Judith Ingolfsson and Vadim Gluzman to Join Peabody Institute Violin Faculty - Violinist.com

Judith Ingolfsson and Vadim Gluzman to Join Peabody Institute Violin Faculty Violinist.com

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