SELECT * FROM products WHERE category = '{KEYWORD} AND 4477=4477';
: This is a "tautology"—a statement that is always true. How the Attack Works {KEYWORD} AND 4477=4477
: Automated tools often use specific numbers like 4477 to "fingerprint" a site and see how it responds to logical tests. SELECT * FROM products WHERE category = '{KEYWORD}
: If a site responds to this string, it means it is not "sanitizing" user input, leaving it open to a full-scale data breach. {KEYWORD} AND 4477=4477