In the first half of 2022, the total attack count and average attack size increased by 75.60% and decreased by 55.97% respectively compared to the figures recorded in the second half of 2021. Compared to the second half of 2021, the maximum attack size decreased by 66.82%, with the maximum attack size clocking in at 232.00 Gbps. Compared to the same period over a 5 year span, March recorded the lowest number of attacks, while June registered the highest number of attacks as well as the highest attack count in the 1HY 2022 period. While the number of attacks increased from April 2022 to June 2022, there was a drop in attack count during the same period in 2021.
- Types of Attack Vectors: In the first half of 2022, UDP Attack and HTTPS Flood were the predominant two attack types, contributing 39.58% and 15.94% respectively, while TCP ACK Attacks ranked third at 6.48%.
- Attacks by Category: Volumetric (Direct Flood) attacks, contributing 67.93% of the total attacks recorded in the first half of 2022, increased by 48.22% HoH and decreased by 15.06% YoY.
- Attacks by Protocol: UDP and TCP based attacks were the predominant two attack types in the first half of 2022, contributing 61.27% and 30.57% respectively.
- Attack Durations: 69.27% of attacks were shorter than 90 minutes, while the rest lasted longer than 90 minutes. 17.15% of attacks exceeded 1200 minutes.