| Although the term 'computer security' is used | | | | only access the resources and services they |
| a lot, the content of a computer is actually | | | | are entitled to, but also to the fact that |
| vulnerable to only a few risks unless the | | | | they can't be denied to access the resources |
| computer is connected to others on a network. | | | | they legitimately expect. Nonrepudiation |
| As the use of computer networks (especially | | | | means that a person who sends a message |
| the Internet) has increased dramatically | | | | cannot deny he sent it and vice versa.In |
| during the past few years, the term computer | | | | addition to these technical aspects, the |
| security is now used to describe issues | | | | concept of computer security is very large. |
| referring to the networked use of computers | | | | Computer security's roots are drawn from |
| and their resources.The major technical areas | | | | disciplines like ethics and risk analysis and |
| of computer security are confidentiality, | | | | the major topics that are concerning it are |
| integrity and authentication/availability.- | | | | computer crime (tries to prevent, detect and |
| Confidentiality, also known as secrecy or | | | | remedy attacks) and identity/anonymity in |
| privacy, means that the information you own | | | | cyberspace.Although confidentiality, |
| cannot be accessed by unauthorized parties. | | | | integrity and authenticity are the most |
| Breaches of confidentiality range from the | | | | important things when it comes to computer |
| embarrassing to the disastrous.- Integrity | | | | security in general, for everyday internet |
| means that your information is protected | | | | users, privacy is the most important one, |
| against unauthorized changes that are | | | | because many people think that they have |
| undetectable to authorized users. The | | | | nothing to hide or the information they give |
| integrity of databases and other resources | | | | doesn't seem sensitive when they register |
| are usually compromised through hacking.- | | | | with an internet service/site.But remember |
| Authentication means that an user is who he | | | | that, on the internet, information is very |
| claims to be.- Availability means that the | | | | easily shared among companies and small |
| resources are accessible by authorized | | | | pieces of related information from different |
| parties. Examples of availability attacks are | | | | sources can be linked together to form |
| the 'denial of service' attacks.Other | | | | something alot more complex about a person. |
| important things that the computer security | | | | Because of this, nowadays, the ability to |
| professionals are concerned about are access | | | | maintain control over what information is |
| control and nonrepudiation. Access control | | | | collected about them, who may use it and how |
| refer not only to the fact that users can | | | | it can be used is extremely important. |