International Journal of Advance Research and Innovation (IJARI)
In today's world the explosive growth of the Internet has brought many good things such as e-commerce banking, e-mail, cloud computing. Most organizations, governments are linked to the internet in some way or the other, but the question arises 'How safe are they'. There is also a Dark side to all the progress such as hacking, creation of Backdoors, phishing etc. This paper elucidates in brief about what hacking is, discusses its scope, types of hackers and the techniques employed by them. It articulates on the growing trend of smart mailers, which can send mails from any possible email, working with Kali which is an offensive software penetration tool and a provides a demonstration of SQL injection and various vulnerabilities still existing in today's sites.