The present invention describes a method for performing one or more social engineering attacks on a plurality of humans connected in a network for assessing vulnerabilities of the humans, wherein the Network comprises at least one of a plurality of data processing devices, memory devices and a plurality of communication links. The method includes gathering information about human profiles including collecting information about target users from actively used social and search sites and performing an automated Social Engineering (SE) phase and updating an Information Model based on the gathered information. Furthermore, the method includes generating a Multiple Attack Vector (MAV) graph based on the information gathered and one or more scan parameters. Moreover, the method includes launching one or more social engineering attacks based on the MAV graph to assess vulnerabilities in the humans in the Network.