SQL Injection - The common security breach in websites.

SQL injection is most common methodology employed by a hacker to exploit vulnerabilities in software applications. Vulnerabilities are basically weak links in the software that exposes unauthorized data/information to a user. SQL injection occurs when the user input is incorrectly filtered for embedded SQL statements.

The technique is powerful enough not only to expose the information to the user but also modify and delete the content which could prove disastrous to the company.