What process offers the highest assurance that sensitive data is irrecoverably eliminated from a storage device?
Deleting files and emptying the recycle bin
Overwriting the existing data multiple times
Rendering the device unusable through destructive methods
Reformatting the storage device
Removing data through a method that involves rendering the storage device unusable ensures that recovery is impossible. Physical measures, such as shredding or melting the device, are effective since they eliminate the entire medium. In contrast, logical deletion only removes file pointers, making recovery feasible with certain tools. Overwriting data, while more secure than logical deletion, may still leave some remnants that can be reconstructed under specific conditions. Thus, the method that ensures complete destruction of the device offers the greatest certainty against data recovery.
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