Exam CAS-004 topic 1 question 603 discussion

The best is shredding the hard drive.

Purging not Shredding While data shredding is effective in the context of physical documents (paper), when it comes to digital data, shredding usually refers to deleting files securely. It may not be as effective for hard drives or other storage devices, especially if the data is not completely overwritten. For example, if you had a bunch of old paper documents that contain important or sensitive information, you would use a paper shredder to cut the documents into tiny, unreadable pieces. That way, even if someone finds the shredded pieces, they won’t be able to reconstruct the original document. For computers, shredding can refer to securely deleting files, so they’re not just "deleted" in the normal sense but are instead permanently destroyed in a way that can’t be undone. Key difference Purging is about wiping data clean from a device so it’s unrecoverable. Shredding is about physically destroying something (like a paper document or data on a drive) into small, unusable pieces.

Purging involves using a method that ensures data is completely erased from a storage device in such a way that it cannot be recovered. Purging typically involves overwriting the storage media multiple times with random data or using other specialized techniques to ensure that the original data is thoroughly destroyed. This is particularly important for sensitive data, as it ensures that even if someone tries to recover it later, they cannot. For example, If you’re getting rid of an old computer, and you want to make sure no one can recover the sensitive data you had on it (like passwords, bank info, etc.), you might use a purging tool to overwrite all the data on the hard drive multiple times. This ensures that even if someone tries to recover the old files, they’re completely gone.

C. Shredding for sure.

It's shredding of course...

I think the answer is actualy C. specialised tools can recover data from purged hard drives.