Security News > 2020 > September > DDoS attacks rise in intensity, sophistication and volume

The increase was felt across all size categories, with the biggest growth happening at opposite ends of the scale - the number of attacks sized 100 Gbps and above grew a whopping 275% and the number of very small attacks, sized 5 Gbps and below, increased by more than 200%. Overall, small attacks sized 5 Gbps and below represented 70% of all attacks mitigated between January and June of 2020.

The rise in smaller DDoS attacks has been matched by increases in attack sophistication and intensity.

The precipitous rise in DDoS attacks mirrors the growth in internet traffic seen during the pandemic.

Most notably, online video has seen an incredible rise in both usage and DDoS attacks.

The report highlights several emerging attacker tactics seen across the industry, including an increase in burst and pulse DDoS attacks, broadening abuse of built-in network protocols such as ARMS, WS-DD, CoAP and Jenkins to launch DDoS amplification attacks that can be carried out with limited resources and cause significant disruptions, NXNS attacks targeting DNS servers, RangeAmp attacks targeting Content Delivery Networks, and a resurgence of Mirai-like malware capable of building large botnets through the exploitation of poorly secured IoT devices.

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