Today, millions of web applications exist to make our lives easier and much more interesting. We can shop online, pay bills, chat with friends and relatives, or communicate with people all over the world. With all this provision, The “malicious” Eve is always lurking, waiting for the perfect moment to attack. In order to develop secure applications, it is necessary to use a security development lifecycle. Security should be considered and tested throughout the application project lifecycle. Shiledcast is here to help you in security testing tasks. In this newsletter, we will discuss about the things to consider while choosing security testing tool, details about DOS(Denial-of-Service) Attack and OWASP ZAP along with some latest news on cyber security.