{keyword}' And (select Chr(100)||chr(85)||chr(102)||chr(83) From Sysibm.sysdummy1)=chr(100)||chr(85)||chr(102)||chr(83) And 'ikjv'='ikjv Online

If the page loads, the answer is "Yes." If it fails, the answer is "No." By repeating this, they can extract entire databases character by character. How to Prevent This

If the website loads normally, the attacker knows the database processed the "True" statement ( dUfS = dUfS ) successfully. If the page loads, the answer is "Yes

If you are a developer, seeing this in your logs means someone is scanning your site for holes. You can stop these attacks by using (Prepared Statements). This ensures the database treats input as "just text" rather than executable code, rendering the single quotes and CHR commands harmless. You can stop these attacks by using (Prepared Statements)

The reference to SYSIBM.SYSDUMMY1 is a dead giveaway that the target is an IBM DB2 database. This is a special "one-row, one-column" table used to perform calculations or retrieve system values. This is a special "one-row, one-column" table used

If it works, the attacker will replace the "True" statement with a query that asks for sensitive data, such as: "Is the first letter of the admin password 'A'?"