https://www.bleepingcomputer.com/news/security/microsoft-mitigates-largest-ddos-attack-ever-reported-in-history/

Microsoft says its Azure DDoS protection platform mitigated a massive 3.47 terabits per second (Tbps) distributed denial of service (DDoS) attack targeting an Azure customer from Asia in November.

Two more large size attacks followed this in December, also targeting Asian Azure customers, a 3.25 Tbps UDP attack on ports 80 and 443 and a 2.55 Tbps UDP flood on port 443.