PGP (Pretty Good Privacy) is strong e-mail and disk encryption software written by Phil Zimmerman and released for free to provide strong encryption for everyone. Zimmerman's company (also called PGP) has merged with Network Associates (NAI), but a freeware version of PGP is still available at PGP Internatinal home page. PGP will automatically install support for file encryption and email encryption on Win32 platforms, and has plugins for Eudora, Outlook, and Outlook express on Win32 platforms. It also has strong Macintosh support, and many variations for Linux.

Crypt analysis is the art of decryting an encrypted message, in whole or in part, when the decryption key is not known. Depending on the amount of known information and the amount of control over the system by the cryptanalyst, there are several basic types of cryptanalytic attacks

Remember that your backups are the key to recovering your system in case of a disaster. Backup all your files, and follow these rules:

Encrypt your backups if they contain sensitive data.

Consider buying an automatic backup program that runs full or incremental backups (without your intervention) every night. There are also services available to encrypt and back up your data over a phone line to an "electronic vault."

Protection of information in the channels and the commutation knots of the communication systems this form of protection is directed toward averting of the possibility of the unsanctioned access to the confidential and valuable information circulating along the communication channels of different it is specific. In the general case it is necessary to read all forms of the threats, which appear in the channels and the communication knots of the communication systems. The most effective means of protection of information in the controlled communication channels is the application of cryptography and special connected protocols.

Problems of maintenance of security considerably become complicated at the organizations of machining of the information in conditions shared where it is focused processed also the information of various assignment collects and accessories. Among problems of maintenance of information security it is possible to allocate questions of the theory, the organization and engineering decisions, which demand the specific approach already at a stage preliminary designing. The first attempts of the decision problems of maintenance of security have mentioned questions of the right, the organizations of access in and to resources.

VIRUS - viruses are programs that can entry computers or networks in many ways causing incidents that range from simply annoying to high destructive (of information not hardware).

SPYWARE - these are malwares that install themselves on computer with out permission and collect personal data. Spyware can come through non-secure websites, with free software, with viruses.

HACKER TOOLS - these are tools used by hacker to attack systems from remote computers. Can come with other malware such us virus, trojan horses.

DIALERS - these are programs that could deal to a premium rate numbers with out your permission and knowledge. Can cost you LOT OF money.

What is the electronic signature?

Coding began beret in extreme antiquity. Thus, already Caesar created the classical cipher, which bears his name. But about the history of electronic signature to here say separately something which, however, is not surprising, indeed to people since olden times was sufficient press and stroke of a pen, so that to the mind comes only papyrus with the sealing-wax press, and therefore let us limit to the present.