Free Trial

Safari Books Online is a digital library providing on-demand subscription access to thousands of learning resources.

  • Create BookmarkCreate Bookmark
  • Create Note or TagCreate Note or Tag
  • PrintPrint
Share this Page URL
Help

3. Computer System Security and Access Controls > What Makes a System Secure?

What Makes a System Secure?

In the most basic sense, computer system security ensures that your computer does what it’s supposed to do—even if its users don’t do what they’re supposed to do. It protects the information stored in it from being lost, changed either maliciously or accidentally, or read or modified by those not authorized to access it.

How does computer system security provide protection? There are four primary methods:

System access controls

These methods ensure that unauthorized users don’t get into the system and encourage (sometimes force) authorized users to be security-conscious—for example, by changing their passwords on a regular basis. The system also protects password data and keeps track of who’s doing what in the system, especially if what they’re doing is security-related (e.g., logging in, trying to open a file, using special privileges). System access controls are the soul of authentication.


  

You are currently reading a PREVIEW of this book.

                                                                                                                    

Get instant access to over $1 million worth of books and videos.

  

Start a Free Trial


  
  • Safari Books Online
  • Create BookmarkCreate Bookmark
  • Create Note or TagCreate Note or Tag
  • PrintPrint