{keyword} Union All Select: Null,null,null,null,null,null,null,null-- Avdq

: A placeholder for a standard search term or input value meant to trigger a legitimate database query.

If you are a or site owner and saw this in your logs, it means someone is scanning your site for holes. To protect yourself, you should always use parameterized queries (prepared statements) to ensure user input is never executed as code. Do you have server logs you need help interpreting, or : A placeholder for a standard search term

An attacker can then replace the NULL values with commands to: Steal . Access private customer data . Delete or modify database records . : A placeholder for a standard search term