1.3.2.1 : Threats to Computer Security

Malicious Code:
Also known as a rogue program. It will cause undesired effects in the programmer’s part. The effect is caused by an agent, with the intention to cause damage. The agent for malicious code is the writer of the code who causes its distribution. Various kinds of malicious code include virus, Trojan horse, logic door, trapdoor and backdoor, worm and many others.
Hacking:
Unauthorised access to the computer system. Hackers are persons who learn about the computer system in detail. They write program referred to as hacks. Hackers may use a modem or cable to hack the targeted computers.
Natural Disaster:
Threatened by natural or environmental disaster. Eg: Flood, Fire, Earthquakes, storms and tornados, Excessive Heat and Inadequate Power Supply
Theft:
Two types of computer theft:
1. Computer is used to steal money, goods, information and resources.
2. Stealing of computer, especially notebook and PDAs.

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