{keyword}') Union All Select Null,null,null,null,null,null,null,null,null-- Zljd Today

: This is the SQL comment symbol. It tells the database to ignore everything that follows it in the code, effectively "muting" the rest of the original, legitimate query.

Are you currently , or

: These are placeholders. For a UNION attack to work, the second query must have the exact same number of columns as the first. Attackers use NULL to test and match the column count without causing data type errors. : This is the SQL comment symbol

: Ensure the database user account used by the app only has the permissions it absolutely needs. legitimate query. Are you currently