International Journal of Computer Applications
Today's world i.e. either private or public (government) sector totally influenced by Internet and networking for their business, entertainment purpose. But black side of an internet cannot be ignored .Internet makes the door open to the intruders and hackers. Any successful attempt made by intruders in capturing data causes a big loss of confidential data or digital money. This forces organizations to adopt serious security policy. It may include either use of an encryption methodology or firewall.