Step-Up Authentication vs 2FA: Implementing Additional Verification for Sensitive Operations in Corporate Systems
Traditional two-factor authentication secures only the initial login, leaving active sessions vulnerable to misuse during sensitive tasks such as accessing payroll data. Step-Up Authentication addresses this by requiring extra verification at the moment of critical actions rather than at login. The article details how one project moved beyond standard Identity Provider features in WSO2 by building a dedicated PIN-code service and gateway-2fa microservice. This approach uses signed cookies with TTL controls and JWT cross-checks to enforce elevated trust levels without disrupting normal user flows. The solution aligns with Zero Trust principles and was monitored via Matomo and ELK for usage and performance metrics. Key implementation considerations include balancing TTL duration, encrypting stored PINs, and conducting load testing before deployment.
Habr•Other
