The DDoS attacks are devastating businesses all around the globe. They are coming each time more potent and last longer, without any sign of going away. Even the big companies are not safe from them. Cybercriminals have diverse tactics and use different protocol vulnerabilities, extensive networks of bots, and amplification methods.
Having a large network of DNS servers and advanced DDoS protection was not enough in these 4 DDoS attacks in recent history. Here you can see how bad could it be to receive a DDoS attack.