File shredders and unsecured deletion

Deletion is not secure. When you delete a file the first letter of the filename in directory entry is changed to a special character (hexadecimal code E5h). This is a special tag that tells the system “this file has been deleted and the space is free”. In fact the file’s data remain at the disk. It may remain on the hard drive until it is overwritten or remain till you will sell your hard drive. Whatever the case your sensitive files can be recover. So that is the answer why we have to use some file shredder utilities.

How can be the data recovered? You may use such utilities as Recover NT 3.5 or Norton Utilities Disk Edit or other. Try some of that utilities and you’ll find a lot of forgotten files. Some of them can freely be recovered for other you should apply some special recover utilities.  

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Deletion algorithms and choosing shredder

Secure deletion algorithms There are several algorithms of secure deletion:  

Single Pass – data area is overwritten once with “1” or “0”.

DoD Method – the data area is overwritten with 0’s, then 1’s and then once with pseudorandom data.

Guttman Method – the data area is overwritten 35 times. This method overwrites the drive taking into account the different encoding algorithms used by various hard drive manufacturers.

NSA erasure algorithm – data is overwritten seven times with “0” pattern then with “1” and so on. It is the best method for quick and secure deletion (QuickWiper can use it).

Why choose QuickWiper among other file shredders?

-  It is flexible: the deletion can be very quick (with single pass algorithm) or secure (with NSA

erasure algorithm)  

- It looks like Windows Recycle Bin. So you don’t have to waste you time for learning. And you don’t

have to complicate your work. Need to wipe file? –Just drag and drop it to the QuickWiper’s Recycle

Bin (with “W”)  

- There is a special add-on utility – Hot-Key Runner for one-touch wipe. Just press selected key at

your keyboard and wiping begins.  

- QuickWiper is not a simple file shredder utility. It have some IE cache clearing features (clear

cookies, typed URLs, cache).  

- Our price is just $29.95 for single license of QuickWiper.  

Think you don't have to use file shredders 

(even such nice as QuickWiper)?

We can describe several scenarios when you must use shredder.

- You’ve decided to move some sensitive files (password files or your business ideas) for you hard disk to CDR or floppy disk. You moved files. But moving means copying and then deleting. But all deleted files can be recovered. To prevent such unforeseen problems use file shredders. QuickWiper is the best decision for office and home.

- You’ve just visited some web pages. Some links may relate for you business and you business ideas. Of course you’ve cleaned IE history (you can also do it with QuickWiper), but some sort of URLs called “typed URLs” remain at your system. They cannot be deleted by user. Use QuickWiper and clear all you steps at the system. That is another reason why use QuickWiper and not other shredder.

- You are going to sell you computer. Don’t trust sellers which tell that all you data will be wiped. They often just format hard drive. Backup you data and the use some of files shredders (QuickWiper for example). Wipe all sensitive files from you hard disk.

We hope that this small review was useful for you and you'll be use some file shredder (maybe QuickWiper and maybe other one). 

Thank you, AKS-Labs.