There are several categories of computer security aspect:
Over the network.
This includes attacks when a computer is on a internet without a firewall, antivirus, or spam monitor. There are tons of viruses out there roaming just to get weak openings on your machine to penetrate and damage your computer. The main issue here is virus infection or even information stealing like credit card numbers and private information. The best way to avoid this sinkhole is by installing an antivirus, and firewall.
Viruses:
So you love to share content through a flash disk? not bad but it poses a risk of transmitting viruses from machine to machine.
Physical,
Someone just stole your hard drive, mouse monitor or keyboard? Simply put this is a physical computer risk.
norton.
A network security consultant's job is to analyze the possible security risks displayed by the hiring company's computer network. They report on risks discovered, advise as to the severity of these risks, and determine an appropriate plan of action to minimize or eliminate threats to a network's smooth and safe operation.
"Yes, all computer security are vulnerable to risks like the Trojan and other computer viruses or spams. If you want to protect your computer, you need to buy antivirus soft-wares."
The person that initially set the computer up created that account name. The name signifies that the account is protected against security risks. For more information on computer security visit Answers.com
The risks of computer system are mainly it fall on feet when carried.
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Accessing your computer remotely can always be risky. While it may be convenient, allowing remote access to anyone can open your computer up to viruses or hackers. Many people do not observe appropriate security precautions and save personal information and passwords online, leaving their computer exposed.
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Computerized accounting brings with it costs of acquiring computer hardware and accounting software. It also introduces new data security risks like viruses.
The company Control Risks specializes in helping organizations manage a multitude of security risks, ranging from political to security in hostile or dangerous environments. They also offer physical protection and support.
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Three security risks that you can encounter when using an information system are malware, malicious insiders, and malicious insiders.