Cipher Gui is a very small and compact freeware utility that overwrites every deleted
file three times and prevents in that way any recovery of them. All parts of the partition not assigned to a file are being overwritten three times, in order to prevent any recovery of already deleted files.

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Only a few days ago I wrote a first small article about true crypt and recommended it. Back then I bought a usb 2.0 hard drive with 300 GB capacity and encrypted its entire partition with true crypt. This was done to test the programs functionality but also to see if it would slow down my main computer (athlon 64 3000+, 1 gb ram).

To my great suprise it did not slow down the pc and I decided to expand the encryption to cover all my hard drives. Let me tell you why and how i did this and why you should also be considering this.

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I thought about encrypting my hard disks, or at least part of them that contain personal data, for at least one year. I never did it because I thought it would be a lot of work involved. I had to find a good program, one that would offer good encryption algorithms, would be free and easy to use.

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This is a very informative site that explains many cryptography concepts. He begins by defining cryptography as “the science of writing in secret code and is an ancient art” and mentions that the first documented use of dates back to 1900 BC Egypt.

After that he explains why cryptography is essential for todays internet communication: “cryptography is necessary when communicating over any untrusted medium, which includes just about any network, particularly the Internet.”

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