Mega'and(select — 1)>0waitfor/**/delay'0:0:2

The /**/ is a comment syntax used to bypass simple security filters that might block spaces. How the Attack Works

The string you provided is a specific type of cyberattack payload used to test for vulnerabilities. Specifically, it targets Microsoft SQL Server (MSSQL) databases. Breakdown of the Code MEGA'and(select 1)>0waitfor/**/delay'0:0:2

: This likely targets a field in a web application where the input "MEGA" is expected. The trailing single quote ( ' ) is intended to "break out" of the application's intended SQL query. The /**/ is a comment syntax used to

Once confirmed, they can use more complex versions of this command to ask the database "yes/no" questions to slowly extract usernames, passwords, or other sensitive data. Security Context Breakdown of the Code : This likely targets

If you are seeing this in your web server logs, it means someone—or an automated scanner—is probing your site for security weaknesses. Developers typically prevent these attacks using or prepared statements , which ensure that user input is never executed as code.

: This is a logical condition that is always true. In a blind injection attack, hackers use such conditions to determine if their injected code is being executed.

sql server - What is this hacker trying to do? - Stack Overflow