SQL Injections

SQL injection, a technique that utilizes and exploits security vulnerability taking place in the database layer of an application, usually occurs when you trust user input. Vulnerabilities may result from a computer virus, weak passwords, software bugs or other script code injection that violates the integrity of the system. The vulnerability exists when user input is filtered improperly for string literal escape characters embedded in SQL statements or if user input is not strongly typed resulting to be unexpectedly executed. It is an instance of a more general class of vulnerabilities that can happen every time a scripting or programming language is embedded inside another