Mega'and(select*from(select — Sleep(2))a/**/union/**/select 1)='

: Access entire tables of user info, emails, and hashed passwords.

Specifically, this is a attempt. The goal of this specific string is to force the server to "sleep" (pause) for a set amount of time, allowing an attacker to confirm if the input is being executed directly by the database. Breakdown of the Payload : Access entire tables of user info, emails,

: Change prices in a store or wipe the entire database. How to Prevent This (The Guide) and hashed passwords. Specifically