Today, computer users are facing the threats of :
cybercrime
phishing
internet and network attacks
back doors
Cybercrime is defined as online or internet-based illegal acts. Hackers, crackers and corporate spies who have advanced computer and network skills access computers and networks illegally with the intent of destroying data, stealing proprietary data and information.
Phishing is a scam in which a perpetrator sends an official looking e-mail that attempts to obtain your personal information and financial information. For example, some phishing e-mail messages ask you to reply with your information, or a pop up window that looks like a website, that collects the information. The damages caused by phishing can be crucial. The following case illustrates potential threat caused by phishing.
Internet and network attacks that jeopardize security include virus, worm, and Trojan horse. Virus is a piece of code that is secretly introduced into a system in order to corrupt it or destroy data, it can damage the operating system, causing the loss of data and other possible losses. Worm is a program that copies itself repeatedly, this will use up the available space and slow down a computer operating speed. On the other hand, Trojan horse is a program that hides within or looks like a legitimate program. Although they seem to be harmless, they may however be triggered if certain condition is certified.
Back doors is a set of instructions in a program that allow users to bypass security control when accessing a program, computer, or network. Once perpetrators gain access to unsecured computers, they often install a back door or modify an existing program to include a back door, enabling them to continue to access the computers remotely without the user’s knowledge.
In conclusion, risk exposed by computer users is increasing with the increasing developed technology. Therefore, safeguards developed must be always up to date to enhance the defenses against online security threats. In the same time, users must be educated and informed about the crucial damages and loss caused by imposing online security threats.
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