Clearing swap and hibernation files properly

Most privacy-conscious users are familiar with deleting files securely, that is, destructively with overwriting and with wiping free space on their disks. But two items that often get overlooked are the swap file (or swap partition), and the hibernation file.

Read the article HERE.

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How to REALLY erase a hard drive
You may already know that “deleting” a file does nothing of the sort. But did you know that your disk drive has a built-in system for the secure erasure of data?

No? Then read on HERE.

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My personal favourite

Use DBan and do multiple passes.
Commercial products have difficulty in recovering data after one pass with DBan.