Different between Intranet and Internet

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Security Measures

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DATA BACKUP  A  data backup  is the result of copying or archiving files and folders for the purpose of being able to restore them in case of data loss. Data loss can be caused by many things ranging from computer viruses to hardware failures to file corruption to fire, flood, or theft (etc). If you are responsible for business data, a loss may involve critical financial, customer, and company data. If the data is on a personal computer, you could lose financial data and other key files, pictures, music, etc that would be hard to replace. As part of a data backup plan, you should consider the following: What data (files and folders) to backup What compression method to use How often to run your backups What type of backups to run* What kind of media on which to store the backups Where to store the backup data for safekeeping 2. Cryptography Cryptography includes techniques such as microdots, merging words with images, and other ways to hide
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DO YOU KNOW ABOUT INTRANET? Intranet Intranet is defined as private network of computers within an organization with its own server and firewall. Moreover we can define Intranet as: Intranet is system in which multiple PCs are networked to be connected to each other. PCs in intranet are not available to the world outside of the intranet. Usually each company or organization has their own Intranet network and members/employees of that company can access the computers in their intranet. Every computer in internet is identified by a unique IP address. Each computer in Intranet is also identified by a IP Address, which is unique among the computers in that Intranet.
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Types Of Computer Security Risks

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A computer security risk is any action that could cause a loss of or damage to computer hardware, software, data, information, or processing capability. types of security risk s ; (a) Malware :       Malware is malicious software, which are programs that act without a user’s knowledge and deliberately /purposely  alter the computer’s operations. Types of Malware : *Computer viruses :  A potentially damaging program that affects, or infects a computer or mobile device negatively by altering the way the computer or device works without the user's knowledge or permission *Worms : P rogram that copies itself repeatedly, for example in memory, using up resources and possibly shutting down the computer, device or network. * Trojan Horses : P rogram that hides within or looks like a legitimate program.  Unlike a virus or worm, a trojan horse does not replicate itself to other computers or device.   (b )  Hardware Theft  poses les
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