{keyword} And 5161=2181-- Qoyo -

This is a basic attempt to see if security measures are in place.

: This is a SQL comment marker (in MySQL, PostgreSQL, etc.). It instructs the database engine to ignore everything that follows it in the query. {KEYWORD} AND 5161=2181-- qoyo

If you are running a , a bug bounty program , or testing your own code , I can provide specific examples of: How to prevent this using prepared statements. What to look for in a WAF (Web Application Firewall) log. This is a basic attempt to see if

: This is a Boolean statement. The server evaluates this as False because 5161 does not equal 2181. If you are running a , a bug

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.

: A junk string used as a filler to complete the SQL syntax structure. Purpose of this Payload