Today, network security is a big issue. Information is exchanged across a network. Unfortunately, along with the power to exchange information, there is also the problem of compromising information safety. An unauthorized person can disrupt a network, capturing personal and confidential data during an exchange process. Confidential information can be stolen along an entire network, resulting in huge monetary loss.
Network security can be compromised in a lot of ways. It’s important to understand how network security can be compromised so that you can prevent it from occurring. One of the main sources of network security attack is the Denial-Of-Service (DoS) attack. This type of attack can make a network so busy that it cannot be accessed and eventually is not able to process anything at all. As a result, the network comes to a complete halt.
Yet another source of network security attack is when file sharing happens in an unprotected manner. If a particular computer is attacked by a virus, file sharing can spread the problem to a large number of computers. It is possible for intruders to gain control of systems to connect to the network through intruder or backdoor programs called BackOrifice, Netbus, and SubSeven. Once installed, these programs make way for others to control the system.
Another way network security can be compromised is if a ‘packet sniffer’ program is used. These programs can creep into the network, without seeking any network access permission. Information is exchanged in the form of packets that contain user names, passwords and also proprietary data. Packet sniffer programs can intercept packets when they are en route and capture messages as they are being transferred and send them to an unauthorized source where the message can be deciphered and information can be extracted for illegal purposes.
Knowing these kinds of network attacks can be useful when you are planning security for your home or office network.