You can save and lock the generated question papers with a password. The database is safe so it doesn't need an external security device. Easy way to take the backup of the database and the generated question papers. User can work in the modules for which they have been authorized.

Thus, Question Bank Software is secure at both the level  i.e. the database level and the user level. Users' activity watch also enhance Question Bank Software security as each activity of the user (opening of software, entry, modification, deletion, view, selection, paper generation, paper printing, answer sheet printing, Closing of software, watching log report) is recorded by the software with date, time, question/ paper details.