Jaiprakash gave a seminar presentation on 3-D secure passwords. The presentation outlined existing authentication techniques like textual and graphical passwords and their drawbacks. It proposed a 3D password scheme that combines existing authentication factors like passwords, biometrics, and tokens within a 3D virtual environment to provide stronger authentication. The 3D passwords offer advantages like flexibility, strength through large key spaces, and ease of memorization through story-based cues. They could be applied to servers, military facilities, and other systems requiring high security authentication.