1)=': Mega'and(select*from(select Sleep(0))a/**/union/**/select

Common and how developers prevent them?

If you are interested in learning more about how to protect your own digital data, Common and how developers prevent them

: These are "comments" in code, used here to bypass simple security filters that might block spaces. Security and MEGA : These are "comments" in code

: This is a way to combine the results of two different database queries into one, often used to extract hidden information. often used to extract hidden information.