Description: Knowledge-Based Authentication (KBA) is a method of identity verification that relies on questions that only the user should know how to answer. This approach is commonly used as an additional layer of security in systems that require precise user identification. KBA can be divided into two categories: static KBA, where questions are predefined and the user must remember the answers, and dynamic KBA, where questions are generated in real-time and may vary with each authentication attempt. This method is especially relevant in a digital world where security threats are becoming increasingly sophisticated. KBA is used to protect online accounts, access sensitive information, and conduct financial transactions, ensuring that only authorized users can access their data. Although KBA is a useful tool, it also presents challenges, such as the possibility of answers being guessed or discovered, which has led to the search for more robust and secure authentication methods.
