They usually have an option to restore the factory settings or completely erase the device. Remember that smartphones and other “personal” devices can store confidential information.Wiping usually takes a long time-several hours or more, depending on the size of the drive. Plan for enough time to wipe the drive.Back up important files that will be needed – e.g., academic or work-related files, personal documents, photos, videos, or music.Securely erasing, or wiping the device overwrites the drive with new data, providing assurance that the storage device has been sanitized and the information cannot be re-constructed. Though you may no longer see the files after they're deleted, their contents are still intact and readable by anyone who has the device, unless you overwrite the old data with new data – i.e., secure erase. A simple “delete” command will not sufficiently remove personal, confidential or other sensitive information. Information can be stored on a wide variety of devices, from pc hard drives, flash drives, CDs, cell phones and tablets, to copiers and scanners.
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