Recently, there is a website by Malaysia Airline got hacked and their main page has been defaced, below is a link to that article
I want to know how did the hacker change the html file?
Do they attack in the DNS server, and reroute the request to that website to another server? How do they do all this?
The second question, I would like to ask is how do I protect my site from these kinds of attacks?
I want to know how they did it, so I could improve on my web security