{keyword}';waitfor Delay '0:0:5'-- -

: In many modern systems, database errors are hidden from the user. An attacker cannot see "Success" or "Error" messages.

: An attacker could use a much longer delay or a loop to tie up database connections, effectively performing a Denial of Service (DoS) attack.

: This character acts as a statement terminator, allowing a second, malicious command to be executed immediately after. {KEYWORD}';WAITFOR DELAY '0:0:5'--

: The single quote attempts to close the string literal in the original SQL statement.

The string you provided, {KEYWORD}';WAITFOR DELAY '0:0:5'-- , is a classic example of a payload designed to test for "Time-Based Blind SQL Injection" vulnerabilities. Technical Breakdown : In many modern systems, database errors are

The payload is crafted to manipulate a database query by breaking out of the intended logic and forcing the server to pause.

: Deploy a WAF to detect and block common SQL injection patterns automatically. : This character acts as a statement terminator,

: If the website takes exactly 5 seconds longer to load than usual after this input, the attacker knows the application is vulnerable to SQL injection.