Introduction to SQL Injection
SQL injection is a type of cyber attack that targets the database of a website or application. It is one of the most common web application security risks, and it can have serious consequences for both the targeted website and its users. The basic idea behind SQL injection is to insert malicious SQL code into a web form or URL, in order to gain unauthorized access to a database. This can be done by manipulating input fields on a web page, such as a login form, or by injecting code into a URL. Once the malicious code is executed, it can reveal sensitive information, modify or delete data, or even gain full control of the database. There are several different types of SQL injection attacks, but the most common are known as "in-band" and "out-of-band" attacks. In-band attacks involve the attacker sending malicious SQL code directly to the database, while out-of-band attacks involve the attacker sending the code to a different server, which then sends the code back to t...