Data on the Internet has always been prone to hacking, and with the expansion of the webspace, hackers have more options to break into your website or locate a vulnerability through which they may hack into your site. Regular internal and external penetration testing is the unerring strategy to protect your business against data breaches and attackers. The safest and most cost-effective technique for combating web application vulnerability in cyber security would be to include web app penetration testing as part of your Software Development Life Cycle (SDLC) process.