-9718 Union All Select 34,34,34,34,34,34,34,34,34,34# -

: Ensure the database user account has the bare minimum permissions necessary to function.

: The repeated "34" is used to determine the number of columns required by the original query. If the number of values (in this case, ten) doesn't match the original table's columns, the database will return an error. -9718 UNION ALL SELECT 34,34,34,34,34,34,34,34,34,34#

This specific string is designed to trick a web application into running an unintended database command: : Ensure the database user account has the

: This SQL operator combines the result sets of two or more SELECT statements into a single result. This specific string is designed to trick a

This pattern is often the "reconnaissance" phase of an attack. Once an attacker knows how many columns a table has and which ones are displayed on the screen, they can replace the dummy numbers with commands to extract sensitive data, such as usernames, passwords, or system configurations. How to Prevent These Attacks To protect your applications, developers should:

: This ensures the database treats the input as literal data rather than executable code.