1. A method for uniquely identifying a memory drive, comprising: detecting defects in regions of the memory drive; storing the detected defects as a defect map; associating the defect map with the memory drive; storing the associated defect map in a second non-transitory computer readable medium; using the stored associated defect map to thereafter uniquely identify the memory drive; and using the unique identification for security purposes between the memory drive and second non-transitory computer readable medium.