The scenarios are examples of measures to protect important information. Whether that information is in the form of spoken word, a document or other important item, the degree of precaution and the level of security measure used depends upon the importance of the concerned item. The challenge to ensure data security has increased manifolds with the advent of cyberspace. The sudden explosion in the amount of personal and organizational digital data along with the necessity to get connected to the outside world has posed an amplified challenge to secure data.