{keyword} Union All Select Null,null,null,null,null,null,null,null-- Avdq < FAST >

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 or input value meant to trigger a legitimate database query. An attacker can then replace the NULL values

: This is a random "cache-buster" or unique string. It helps the attacker identify their specific request in server logs. 💡 Why this is important it confirms the site is .

: The attacker is trying to determine how many columns the original database table has. They keep adding NULL values until the page loads correctly without an error. An attacker can then replace the NULL values

If a website processes this string and shows a blank page (or the usual page) instead of an error, it confirms the site is .