: Attackers can replace the NULL values with table names (like users or passwords ) to steal the entire database.
: Only allow expected characters (e.g., alphanumeric only for a username).
: 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.
: Attackers can replace the NULL values with table names (like users or passwords ) to steal the entire database.
: Only allow expected characters (e.g., alphanumeric only for a username). : Attackers can replace the NULL values with
: 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. : Attackers can replace the NULL values with
