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Generally, the USB flash drive is relatively small, portable, lightweight, and can be read on all computers and any electronic device that has a USB port. These features make the USB stick into the practical and the perfect medium to transport data to a computer and transfer data to other gadgets and electronic devices. On the other hand, due to the small physical size of the USB stick the USB stick is prone to be lost or changed hands, either because it fell on the road, tucked away, wasted, or taken by someone else without our knowledge. In anticipation of such a condition, then we have to protect the USB stick so that files and data on the flash drive remains safe and easily accessible by others, or abused by others who found our flash. How to protect the flash is the means used to protect the flash / hidden partition on the flash, flash lock, and secure data and files on the flash, so that can not be accessed, opened or used by others. In general, the flash protection can be done in two ways, namely by encryption hardware and software encryption or partition and protect data in a flash.