The term global village has become more realistic than fictional after the widespread use of the internet in all countries in the world. What the internet does is effectively computerizing the globe. Like many other things, the internet provides good and bad things. The consensus is that the good things far outnumber the bad things. But the questions posed regarding data security are serious ones. Since more and more institutions such as military, diplomatic, and financial institutions are relying on the internet or some other kinds of network for transferring data and streamlining the process, the number of people who try to misuse such data is also on the rise. To prevent this various kinds of data security measures are adopted by network administers. A majority of the data security measures are related to software applications. Computer hardware network security options are also used.
To understand the importance of data security, consider the case of a bank that has branches all over a country. For streamlining the operation, most of the banks set up a private network or a network connected with the internet to transfer financial data. A person with sufficient software and hardware knowledge can sneak into this network without permission and change the data according to his or her will. Such people are nicknamed hackers. In the case of a bank, since change of data means change or loss of money, implementation of state of the art security measures for protecting the data is absolutely essential.
