What is an sql injection attack? All websites process data entered by users. An input-validation attack is when unexpected user input is processed by a web server or database and an error occurs.

What is an sql injection attack?

“An SQL Injection Attack (SQLIA) occurs when an attacker attempts to change the logic, semantics or syntax of a legitimate SQL statement by inserting new SQL keywords or operators into the statement.” Halfond, W.G.J. and Orso, A. (2005)