Firewall Your Records With Computer Network Security Software
Computers have become one of the most prominent electronic tools in today's world. They find their place in almost every walk of human life, starting from the games played by a toddler to the research done by space stations. The magnitude of the impact computers have had on humans cannot be described, it has to be seen to believe it. With the advent of computers, everything has become computerized. From small programs on the computer to calculate the sum of two numbers to large scale applications that are used to manage and run companies, everything has been converted to a form computers find it easy to do. In this regard, computers hold virtually all the information pertaining to any field. With the introduction of networks and Internet, computers have become even more powerful, with the ability to connect between themselves and share data. Gigabytes of data can be transferred between computes located several thousands of kilometers away withing minutes. However, with the positives come the negatives too. Since all the data is stored in computers, they are very much vulnerable to unauthorized access. The main cause for this is that computers don't have a brain. They cannot think for themselves. They are just slaves to people who know how to operate them. So if a wrong person uses the right commands, computers can turn out to be the worst betrayers. Within seconds, all information that is supposed to be private can be made public. This is called hacking. Hackers are people who gain unauthorized access into a computer and try to use the data contained within for their personal reasons. Nine out of ten times, this is detrimental to the computer. To protect computers from being hacked, computer network security softwares are used. Computers have inbuilt firewalls that prevent unauthorized access, but with the advance of technology, hackers have found ways to bypass the inbuilt firewall. Hence, it becomes necessary to develop additional protective measures to ward off hackers. With the presence of these measures, a hacker can be detected. This is called Intrusion detection. A main disadvantage in Internet is the concept of viruses. A virus is a computer program that runs on a computer and performs functions that are harmful to the computer. Viruses are of different types. They can be trojan horses, which are programs that appear harmless but contain harmful code that may damage system files. They may be worms that propagate from one computer to another, thus spreading the disease all over the network. To safeguard the computer from these pests, antivirus softwares play a major role. Antivirus softwares are computer network security softwares. They contain programs designed to detect viruses and delete them. When an antivirus is installed, it first runs a complete scan of the computer checking for existing virus traces. If any virus is present, it notifies the user and either quarantines the file or deletes it, thus terminating the virus. An example of an antivirus software is the Kaspersky Internet Security. The software is an excellent guard against viruses and intruders. It has various functionalities like virus scan, critical scanning (which refers to partial scanning of important areas that are essential for the working of the computer), rollback (which means that if a virus has already done the damage, the software allows the computer to go back to the last recognized safe state, thus negating the effect of the virus). Kaspersky protects against several types of viruses like mail viruses, download viruses, etc. Such antivirus softwares make computer networks a safer place to share data. |
