-5025 Order By 1# 〈360p 2025〉

This is often a "false" or "null" value. By inputting a value that likely doesn't exist (like a negative ID), the attacker forces the application to return an empty result set or an error. This makes it easier to see how the database reacts when the injected code is added. ORDER BY 1 : This is the structural probe .

Use allow-lists to ensure inputs match expected formats (e.g., ensuring an ID is always a positive integer). -5025 ORDER BY 1#

This is the terminator . It attempts to break out of the developer's intended string literal. If the application does not sanitize input, the database engine will see this quote and assume the original command has ended, allowing the attacker to append their own logic. This is often a "false" or "null" value

The database ignores the final quote and semicolon, executes the sort, and confirms to the attacker that the query is valid and contains at least one column. 4. Impact ORDER BY 1 : This is the structural probe