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Web application security refers to the practice of using software, hardware, and other methods to protect a web application from malicious threats. Security devices and software such as web application firewalls and general safe computing practices work together to prevent hackers or other threats from stopping services, stealing information, or vandalizing a network.
Achieving good and efficient web application security is not an easy task and there are many challenges web application firewalls are up against. Due to the inherent way web applications are built, security is a complex equation with multiple variables. Web applications are based on third party web servers, legacy components, servers, operating systems and code development by the company. They contain numerous settings, pages, folders, parameters and authentication schemes.
Each of these layers could be targeted and are potentially vulnerable to attacks that even the companies' best security practices can't guard against. The organization deploying the web application still relies on other companies' software which contains known, documented vulnerabilities or new vulnerabilities yet to be discovered. To address and face the multiple threats and challenges of web applications security, it is a must that businesses use a Web Application Firewall (WAF) to secure sensitive corporate and customer information.