Evaluation of Real-World Risk-Based Authentication at Online Services Revisited: Complexity Wins
Jan-Phillip Makowski,
Daniela Pöhn
Abstract:Risk-based authentication (RBA) aims to protect end-users against attacks involving stolen or otherwise guessed passwords without requiring a second authentication method all the time. Online services typically set limits on what is still seen as normal and what is not, as well as the actions taken afterward. Consequently, RBA monitors different features, such as geolocation and device during login. If the features' values differ from the expected values, then a second authentication method might be requested.… Show more
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