What is a DDoS attack?
DDoS stands for Distributed Denial of Service (DDoS) attack, and it’s when someone will try to make a website or service unavailable. To perform a DDoS attack, you need many compromised machines. Such machines are called botnets.
Those machines at a given time will try to overflow the website with traffic using different techniques. A successful DDoS is when the site is unavailable or slows down the loading time for the users that try to reach them.
Today hackers perform DDOS attacks with anything connected to the internet that is capable of receiving and sending information (packages) trough it.
How to protect
There is not much we can do to prevent DDoS attacks if we are users of services under attack.
The responsibility of protecting the webpage or service is on the service provider.