What is risk-based authentication (RBA)?

• A. Authentication based on the risk associated with a transaction
• B. Authentication based on transaction fees
• C. Authentication based on user history
• D. Authentication based on delayed payment processing

Answer: (A)

Risk-based authentication (RBA) is a security measure that adjusts authentication requirements based on the perceived risk of a particular transaction or access request. The primary goal of RBA is to provide a balance between security and user convenience. In scenarios where the system determines a higher risk—due to factors such as unusual login locations, behavior outliers, or the sensitivity of the data being accessed—stricter authentication measures may be required. Conversely, if the risk is assessed as low, the authentication process might be streamlined to enhance user experience.

This approach leverages a variety of data points to assess risk at the time of authentication, allowing organizations to respond dynamically to potential threats. By prioritizing security based on transaction risk rather than using a one-size-fits-all method, RBA enables more efficient handling of user authentication and helps protect against fraud and unauthorized access effectively.