International Journal of Scientific Research Engineering &Technology (IJSRET)
In today's scenario there is a major threat to misuse the personal as well as official data. Data which is easily accessible from the storage device by an unauthenticated user is a major concern and needs to be eradicated. Increase in number of software and devices for hacking and cracking causes gains in unauthorized access which results in exploitation of important data. Methods like user ID and password which is mostly used as security is now not reliable and secure due to rapidly increase in hackers and crackers.