If the website takes exactly 2 seconds (or more) to load, the attacker knows the database is vulnerable to SQL commands.
: 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. MEGA'and(select 1)>0waitfor/**/delay'0:0:2
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. If the website takes exactly 2 seconds (or