Duo Security (Cisco)

Overview

Duo Security, part of Cisco since 2018, is one of the most widely deployed multi-factor authentication platforms in the market. Beyond push-based and FIDO2 MFA, Duo checks the health and trust of the device at login, enforces adaptive access policies, and fronts VPNs, cloud applications, and workstation logons through one enrolment. Its free tier and straightforward rollout have made it a default MFA recommendation for small and mid-sized Canadian organizations, while the Cisco integration story carries it into enterprise and public-sector environments. For consultants and MSSPs, it is the fast path to closing an MFA gap flagged in an assessment or a cyber-insurance questionnaire.