Distributed Denial-Of-Service (DDoS)

A distributed denial-of-service (DDoS) is a large-scale DoS attack where the perpetrator uses more than one unique IP address or machines previously compromised.

• wikipedia:2016 Dyn cyberattack

https://en.wikipedia.org/wiki/Category:Denial-of-service_attacks

See also

• Firewall
• IT Security Attacks