Friday, June 20, 2008


After reviewing the post ( I realized that using computers can create headache and make me feel not to use computers at all. But computers cannot be omitted from being used as it is becoming an essential tool in our daily life. What I notice from this post, it is not secure to perform internet transaction due to unauthorized access or damage to computer systems via internet transaction. It could be Denial-of-service (DoS) attack, virus, worms, Trojan horses, crackers, hackers, malware, spyware, and other attacks.

I even realized how dangerous computer viruses can be and the problems encounter by computer users such as data lost, important information being deleted, computer system breakdown, and others. The most common attack for me would be virus which is defined as a computer program that can copy itself, change computer settings and slow computer down without the knowledge of the user. The most common way these viruses come into contact is through online whereby, the user who may surfing the internet for some information may be unaware of the risk contacting with virus. Virus can also be transferred through device such as thumbdrive or could be due to some incomplete coding. Over the years, many types of viruses have been discovered such as e-mail worm, file infecting virus, or macro virus.

In order to prevent virus attack, a user should install a reliable antivirus software that helps to eliminate, identify, or neutralize wide range of threats, including worms, phishing attacks, trojan horses and other malware. Installing a good antivirus is not sufficient, the virus definition should be updated regularly and it is advised to scan the computer at least 2 to 3 times per week before switching off the computer off. Furthermore, always remember to scan those portable drives before opening it eventhough you assume it is clean from those viruses.

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