Data security and extracting intelligence from data in the form of information is the area where every organization is concerned about it. Network security is concerned with who connects to and what goes across a network. Net users have to provide personal credentials like passwords or wireless keys, and the network must protect with firewalls and intrusion detection system. Information security on the other hand, is a somewhat more general concept of being sure information systems have confidentiality, integrity, and availability. This can include network security as well as cryptography, access control, physical security, and more. It covers everything from the earliest security mechanism to latest DMZ zones. Social engineering is the act of manipulating people into performing actions or divulging confidential information, rather than by breaking in or using technical cracking techniques . This paper described various techniques related to social engineering attack; the countermeasures for a social engineering attack.

VPN IA DMZ