{keyword} And 5161=2181-- Qoyo May 2026

If the page breaks, returns an error, or shows no content, it confirms that the application is vulnerable to SQL injection because the AND False successfully changed the query's behavior.

: This is a Boolean statement. The server evaluates this as False because 5161 does not equal 2181. {KEYWORD} AND 5161=2181-- qoyo

The attacker adds this to a URL parameter or input field (e.g., ?id=1' AND 5161=2181-- qoyo ). Boolean Logic Test: If the page breaks, returns an error, or

This is a basic attempt to see if security measures are in place. If the page breaks

: This is a SQL comment marker (in MySQL, PostgreSQL, etc.). It instructs the database engine to ignore everything that follows it in the query.