The law of conservation of energy is that energy remains constant; it can be neither created or destroyed. It simply transforms from one form to another. While not a perfect analogy, data on a hard drive or other physical media is quite difficult to completely transform to the state of fully erased. While many have lost files and been unsuccessful in retrieving them; for an information security professional, the goal is often to ensure that the data is eliminated (sanitized is the official term) without the possibility of retrieval. Secure data deletion is the process of deleting data such…
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