DDoS Attacks Jump 358% Compared to Last Year
HelpNet Security, Tuesday, April 29th, 2025
Cloudflare says it mitigated 20.5 million DDoS attacks in the first quarter of 2025.
This is a 358% increase compared to the same time last year. Their Q1 2025 DDoS report highlights a rise in the number and size of attacks, including some of the largest ever recorded.
Massive multi-vector attacks
One-third of the attacks, about 6.6 million, directly targeted Cloudflare's own network infrastructure. These came during an intense 18-day multi-vector campaign that also hit hosting and service providers. Attack types included SYN floods, Mirai botnet attacks, and SSDP amplification attacks.
Researchers also reported more than 700 hyper-volumetric attacks, defined as exceeding 1 terabit per second (Tbps) or 1 billion packets per second (Bpps). On average, that's about eight hyper-volumetric attacks every day. These were mostly UDP-based floods.