{keyword}');select Sleep(5)# [DIRECT]

: This is a comment character in MySQL. It tells the database to ignore the rest of the original SQL statement, ensuring the injected command doesn't cause a syntax error [1]. Purpose: Blind SQL Injection

Ensure the database user account used by the web application has limited permissions. {KEYWORD}');SELECT SLEEP(5)#

: This represents the legitimate input field or parameter in a web application (e.g., a search box, user ID field, or URL parameter) [1]. : This is a comment character in MySQL

Strict validation should be used to ensure input matches expected formats (e.g., integers only, no special characters). a search box