This document describes some common methods and software to assist you with the sanitization process. When sensitive information is stored on the hard drive of a machine that is to be surplussed or transferred to another individual or department, it is therefore imperative that extra measures be taken to wipe clean the hard drive before the computer leaves your area of responsibility. All the data is still there and, unless it’s overwritten, can be easily recovered using a file recovery software. When you delete files and then empty the Recycle Bin, you don’t actually erase the information, you just delete the reference to it so that the operating system can’t find it.
These methods, however, are like sweeping something under the carpet: you may not be able to see it, but it’s still there. For the general user, the delete or format command appears to be the logical method of removing unwanted data files.
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