Application Security Testing is only a part of a comprehensive secure software development lifecycle. Dynamic testing of a web application means attempting to find vulnerabilities and exploits within the running application. Were not trying to give short shrift to the importance of developing a complete, end-to-end secure development. (More on tools in step two.) Best resources to help get you started: Get started today for free with the resources and tools listed above for free. We have a demo to help you get started along with a QuickStart Guide and an AppScan Forum Forum.”]
Source: https://securityintelligence.com/top-application-security-testing-resources-started/