International Journal of Scientific & Engineering Research
The usual way of analyzing network security model is using through various technologies like IDS, IPS, firewalls, UTMs, access control lists and malicious software defense etc. This paper presents the difference between hackers and intruders with their main motives and intentions with their way of thinking, planning and performing attacks for their personal gain and as well as others gain. This shows the security of computer networks and information systems can't protect effectively if the human factor fails. Here, explaining how the network is hacked or intruded by using several numbers of tools with achieving their motives.