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Why should I encrypt my documents?

The increasing ability to connect to the Internet from a home computer has enriched many households by providing them with new sources of information and entertainment.

On the other hand, hackers increasingly probe connected computers for weaknesses in their security and can gain access, hence stealing confidential information without the user even realizing it.

Furthermore, Trojan Horse programs and Spywares come from seemingly innocent sources. Once the user launches them, they can begin secretly sending data - including any sensitive personal or financial information stored on the PC - back out over the Internet.

Traditional security products such as virus scanners do not provide adequate protection against unknown threats and the thousands of mutations and variations of Spyware and viruses available to hackers on the Internet.

Now, for your peace of mind, if you want your private data to remain as such, well hidden from everyone, encrypt it! With keys up to 2048 bits and its very strong encryption algorithm, CryptUp will provide complete security for your files, whether they are pictures, mail, credit cards codes, password for your on-line bank account or... anything you may think of!

Why should I "shred" my documents?

When you delete a file, it is not physically destroyed. Its name is removed from the Master File Table (MFT) for NTFS formatted volumes or from the File Allocation Table (FAT), the "Table of Contents" of your disk, so to say, but the sectors containing your data remain on your hard disk and can be recovered!

In fact, the sectors, organized in clusters, still contain your data until another file overwrites them. However, one can never know when the sectors will be overwritten. Besides, a large cluster, in which a file will have overwritten only one sector, can indefinitely keep the data of the previous file contained in the remaining sectors of the cluster, making it accessible to a "would be" hacker. Anyhow, a file destroyed with the Delete command, even when it is NOT sent to the Windows Recycle Bin, can always be restored at some point in time. Incidentally, file recovery utilities make use of this characteristic to restore accidentally deleted files.

To palliate this risk, CryptUp has a built in shredder that erases all the data in all the sectors of all the clusters of the file you want to delete. Doing so, your shredded file will be irremediably and definitively destroyed, whatever the means, existing or to come, used to try to restore it.

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Last update: avril 28, 2008