Web Applications plays an important role in most of the organizations for their day to day activities. These applications are exposed to various attacks such as SQL Injections attacks, Cross Site Scripting attacks and LDAP Attacks. These types of attacks may disclose the personal information and organization information to third party which leads to fraudulent activities inside or outside the organization. This Information Security exclusively discusses the latest intelligent techniques for preventing SQL Injections and Cross Site Scripting attacks in Web Applications. Information Security illuminates the fundamental concepts of Securing Web Applications and its data when communication occurs between the Web Browser and Web Server. Dr.Kadirvelu Selvamani starts with the basic of Web Browser, Web Server and various threats and attacks on Web Applications. Information Security covers various attacks on Web Applications and its data. It also offers extensive coverage on SQL Injection attacks and Cross Site Scripting Attacks on web applications and the counter measures to prevent them with suitable examples