Verisign Distributed Denial of Services Trends Report (Volume 5, Issue 1 - 1st Quarter 2018)

This report contains the observations and insights derived from DDoS attack mitigations enacted on behalf of, and in cooperation with, customers of Verisign DDoS Protection Services during Q1 2018. This report offers a unique view into the attack trends unfolding online, including statistics and behavioral trends for Q1 2018.


Verisign observed that 74 percent of DDoS attacks were over 1 Gbps (Figure 1). When comparing Q1 2018 to Q4 2017, Verisign saw a 53 percent increase in the number of attacks and a 47 percent increase in the average of attack peak sizes (Figure 2). Year-over-year the average of attack peak sizes decreased 21 percent. Verisign additionally observed that 67 percent of its customers who experienced DDoS attacks in Q1 2018 were targeted multiple times during the quarter. Overall, DDoS attacks remain unpredictable and vary widely in terms of speed and complexity.


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