{keyword});select Sleep(5)# Page

Never concatenate user input directly into queries. Use parameterized queries so the database treats input as data, not code.

The site is vulnerable, and they can now begin extracting data bit by bit based on response times. {KEYWORD});SELECT SLEEP(5)#

: This attempts to "break out" of the developer's intended query. It closes a string and ends the current SQL statement. Never concatenate user input directly into queries

Filter out characters like ; , - , and # that are commonly used in injection attacks. : This attempts to "break out" of the

: This is the core command. It tells the database engine to pause all operations for 5 seconds.

Don't let your database be put to sleep. The best defense is simple:

In many attacks, the database doesn't "talk back" to the user with error messages. This is called Blind SQLi . Hackers use the SLEEP command as a "sonar" pulse: The Request: The attacker sends the payload.