In 2021, Comcast Business DDoS Mitigation Services successfully identified and helped defend 24,845 multi-vector attacks targeting Layers 3,4, and 7 simultaneously. Overall, 69 percent of Comcast Business customers experienced DDoS attacks, a 41 percent increase over 2020, while 55 percent were targets of mulit-vector attacks, as opposed to in 2020 where most customers experienced single vector attacks.
The statistics were reported in the newly released 2021 Comcast Business DDoS Threat Report, which found that mulit-vector DDoS attacks targeting Layers 3, 4, and 7 simultaneously represent a 47 percent increase from the record number set in 2020.
“DDoS attacks, when they occur, can be costly and difficult to defend. The risk of losing network, server and application availability is higher than ever,” said Shena Seneca Tharnish, Vice President, Cybersecurity Products, Comcast Business. “With threat actors constantly innovating, organizations must stay vigilant to help protect their infrastructure from bad actors determined to cause financial and reputational damage.”
- Other key findings from the 2021 Comcast Business DDoS Threat report include:
- Attacks on information technology customers grew steadily, ending the year at 10X the January numbers.
- 98 percent of all multi-vector attacks were under 5 Gbps, as bad actors often strike at low volumes to avoid detection, degrade site performance and map out network vulnerabilities for reconnaissance.
- 69 percent of all multi-vector attacks lasted under 10 minutes, as short duration attacks are harder to detect and give IT organizations less time to respond, quickly overwhelming defenses.
- The number of vectors deployed in a single multi-vector attack increased from five to 15, while the number of amplification protocols used in multi-vector attacks increased from three to nine.
- 99 percent of customers experienced repeat attacks, while the largest and most severe attack was delivered at a rate of 242 Gbps.
The 2021 Comcast Business DDoS threat report focuses on multi-vector attacks that target Layers 3, 4, and 7 simultaneously.
https://business.comcast.com/community/browse-all/details/2021-comcast-business-ddos-threat-report