Duo Security is a company that provides network security solutions. Its products include multi-factor authentication (MFA), a security access management solution that verifies a user's identity; Duo Mobile Application, an app that keeps company and personal data safe; Passwordless, a security authentication platform to describe a group of identity verification methods; etc. The company offers access management, cybersecurity, phishing prevention, authentication, and other services. Duo Security caters to education, finance, healthcare, legal, retail, and other sectors.