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A "chatbot" is a computer programme that interacts with and processes human conversations while also enabling humans to interact with and communicate with digital devices. It is also described as one of the most advanced and promising expressions of interactions between humans and machines. Its main task is to help students by providing answers to their questions. Existing chatbots are not entirely secure and can create open passages for cyber criminals or hackers to access the data flowing through the chatbot interface. So the chatbot will be made secure using the techniques of authentication (session) timeout and encryption. "Encryption is a method of secure communication that prevents others from accessing data while it is being transferred from one end system to another. The data is encrypted on the sender’s system, so only the intended recipient can decrypt it. " Authentication (session) timeout …