エ 専用ソフトなどを使って、PCに内蔵されている全ての記憶装置の内容を消去するために、ランダムなデータを規定回数だけ上書きする。 PCのデータは、普通に削除しただけでは完全には消えていません。実は、削除してもデータの場所の情報が消えるだけで、専用の復元ソフトを使えば元に戻せてしまうことがあります。そのため、情報漏えいを防ぐには、データの上にランダムなデータを何度も上書きして、元のデータを復元できない状態にする必要があります。 Data on a PC is not completely erased when it is simply deleted. In fact, deleting a file only removes the information about its location, and the actual data may still remain. Therefore, it can be recovered using special recovery software. To prevent information leakage, it is necessary to overwrite the data with random data multiple times so that the original data cannot be restored.
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