What is computer security?

Some very confidential stuff takes place everyday on a business’s computer systems. E-mails with restricted information travel back and forth between employees and their superiors. Data about a company’s operations and finances is stored in each computer. Financial transactions might even occur online. As these top secret things are taking place, a group of people could be out there to intercept information. These outside influences could use what they steal to do serious damage to you and your company. And this is where computer security is very much needed.

Computer security is the effort to create a secure computing platform, designed so that agents (users or programs) can only perform actions that have been allowed. This involves specifying and implementing a security policy. The actions in question can be reduced to operations of access, modification and deletion. Computer security can be seen as a subfield of security engineering, which looks at broader security issues in addition to computer security.

In a secure system the legitimate users of that system are still able to do what they should be able to do. While one might be able to secure a computer beyond misuse using extreme measures (locked in a vault without any means of power or communication for example), this would not be regarded as a useful secure system because of the above requirement.


Back to Top