Sleep(5)# — {keyword}');select

Malicious use of SLEEP() can lead to Denial of Service (DoS) by overloading the database with connection requests [3]. How to Prevent This Attack

Ensure the database user account used by the web application has limited permissions. {KEYWORD}');SELECT SLEEP(5)#

: This represents the legitimate input field or parameter in a web application (e.g., a search box, user ID field, or URL parameter) [1]. Malicious use of SLEEP() can lead to Denial

If the payload works, an attacker can replace SLEEP(5) with more complex queries (e.g., IF(SUBSTRING((SELECT password FROM users),1,1)='a', SLEEP(5), 0) ) to extract data character-by-character based on whether the server pauses [3]. Security Implications a search box