A vulnerability in enterprise collaboration suite MiCollab by telecommunications company Mitel has been abused for distributed denial-of-service (DDoS) attacks with record-breaking amplification potential.
Distributed denial-of-service attacks soared in complexity and size during 2021. While the overall number of DDoS attacks declined marginally compared with 2020, the F5 Silverline team saw the largest attack in 2021 peak at nearly 1.4 Tbps, 5.5 times larger than the largest attack in 2020.