Computers that are connected to a network can be exposed to different problems than most stand alone systems. The network security problems these machines face can include risks posed by outside sources infiltrating the main network. These can come in the form of spy tactics, attacks on entire networks and users trying to exploit the system. When computers are connected to a main system all of the machines are vulnerable to these risks.
A user trying to exploit a system will transmit small bits of information over the shared connection. Once the entire package has been sent, the bits of data reassemble themselves to become an undetected program running in the background. This can cause systems to slow down or create interference for running certain programs. Some of these data programs are designed to kick in when a specific application is opened or installed.
Spying can also be referred to as eavesdropping and is something that occurs within network communications. In this procedure, the hacker or unauthorized party, simply taps into the system to copy data as it is transmitted. This process can work even when a system sends encrypted data, because there are tools designed to get through the encryption to expose the original data.
Another type of system attack is sometimes referred to as DoS. These initials stand for denial of service, which operates differently than the eavesdropping type pf attack. This procedure is designed to halt the operation of a network by blocking out its connections. This can occur when the system is hit with an enormous amount of traffic in a very short period of time. This attack usually focuses on Internet websites and servers. Once the system is down no one can connect to it.
Computer users might have heard of programs using backdoor operations. This is a process used to gain entry into a system without the authority or approval of the user. Programs designed to gain access to a computer in this manner often disguise themselves as other software programs the user will accept. This procedure works well on systems with no or very little security.
Most network security problems arise due to the way a particular system is designed. If the problems are anticipated in advance a system can be set up to detect and remove threats before they create problems. An existing system can often be redesigned to reduce or eliminate most of the risks involved in network systems.
Paul J James is a freelance writer who enjoys writing about all things technical. This includes Network Monitoring Tools that provide Application Performance Monitoring for large corporations.
