Nowadays, as many as 70 percent of websites have vulnerabilities that could lead to the theft of sensitive data of company (such as credit card information and customer info list). In particular, too many custom web applications are often not fully tested and contain a lot of undetected vulnerabilities, making them easily fall prey to hackers. There is no doubt that, the security of a website is very important, so as a website administrator, it is very necessary to conduct security penetration tests on their own servers.

The Web Application Hacker's Handbook (WAHH for short), 2nd Edition is one of bible-level of security technology books with comprehensive, abundant and professional content highly recommended by AppNee. This second edition new added about 30% of content, mainly introduced new trends and a large number of new vulnerabilities in the field of Web security.