| As an application of information securITy, computer securITy handles issues regarding information privacy rights and IT is a branch of computer science. Restrictions are reinforced by new platforms and encryptions every day. The system was first used by milITary commanders, but now IT's manly used by people that make online transactions or at a lower level for any other information, like e-mail address or personal documents from their computer. The biggest advancements in encryption are used in the milITary codes.
In large terms, computer securITy is protection against intentional and unauthorized destruction or modification of data and against access to data by unauthorized persons. There are three areas regarding computer securITy: confidentialITy, integrITy and authentication. ConfidentialITy is ensuring that data can't be accessed by unauthorized persons, integrITy means that data can't be altered by unauthorized users wIThout IT being detected by authorized users and authentication is the process of ensuring that each user is who he claims to be.
There are some terms that are often used in computer securITy. Access control is the process that sets privileges to each user, some being able to access more information that other. AvailabilITy is a property of the system; IT means that IT has to be operational and functional at any time, and privacy ensures that personal information about each user can't be used for any other purposes than the ones stated. A secure system must accomplish all of these requirements about privacy, securITy and confidentialITy, for users and information. A normal personal computer usually has a firewall that assures the computer securITy. IT has ways to prevent unauthorized access and destruction of data. The last resort for computer securITy is recovery. IT can consist of backup disks, media or other methods to back up important data and after the intruder has left, you can at least restore some of the information. Each computer must be analyzed and there are a lot of methods to do this. The system can be protected in many ways, but the most important part is to realize that each PC has weak points. If you know the vulnerabilITies of the system, you know how to protect IT. There are different areas involved in a good computer securITy plan. New viruses appear every day and IT is almost impossible to detect threats that appear after the release of the anti-virus program. In this case, the best method is to stay in touch wITh new anti-virus updates and download them as soon as possible. A computer securITy manager should be careful about the three major parts of the securITy and mostly about privacy. If personal data is leaked, valuable information can be lost and used against you. Any computer crime is prevented wITh the help of computer securITy. Complete computer securITy is impossible to realize, the recommended option is "layered securITy". WITh multiple ways of securITy, the chances of the system to be broken are smaller. There are many possible layers, like firewall, anti-virus or online scans. All of them are preventing viruses, but each in a different way. This increases the chances of detecting any virus. You can learn important things and strategies related to computer securITy over the internet, but IT's best to find a professional course.
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