Today, most of the organizations are reliant on software application development to deliver them competitive edge. On the other hand, they are progressively opening up their computer networks to business partners, customers and suppliers. They are making use of next-generation programming languages and computing techniques to provide a richer experience for these users. Simultaneously, hackers are focusing their attention on the vulnerabilities and flaws contained in those applications. Today organizations that use the tools available for improving the security of the applications that they develop, spend less on IT security and, as a result, are less prone to hacking attacks.
Therefore, application security encompasses measures taken throughout the code's life-cycle to prevent gaps in the security policy of an application. They also underline systems (vulnerabilities) through flaws in the design, development, deployment, upgrade, or maintenance of the application.