SQL injection is a form of attack that can be used to steal information from databases.

The major cause of SQL injection is a lack of input validation. To prevent this, it’s important to use database parameters and prepared statements where they are available.

When an attacker has access to a database, they can take advantage of SQL injection by inserting malformed pieces of SQL code that result in the execution of unintended commands outside the original database query. This allows the attacker to access more information than what was originally intended since all databases operate under one user with admin privileges.