Link11 Reports 225% more DDoS attacks in H1 2025 with new tactics against infrastructure

Frankfurt am Main, Germany, September 9th, 2025, CyberNewsWire

The threat landscape surrounding distributed denial-of-service (DDoS) attacks intensified significantly in the first half of 2025, according to the latest Link11 European Cyber Report. 

Documented attacks targeting the Link11 network increased by 225% compared to the same period in 2024.

The report highlights not only a marked rise in attack frequency but also a substantial escalation in their duration, intensity, and technical sophistication.

Notably, attackers deployed volumes reaching 438 terabytes—equivalent to over seven years of continuous 4K Netflix streaming—and increasingly employed Layer 7 attacks that closely mimic legitimate user traffic.

The report also identifies politically motivated campaigns, including those attributed to groups such as NoName057(16), targeting critical infrastructure.

Record figures: data avalanches and sustained attacks

In the first half of 2025, the volume of attacks totaled 438 terabytes. This corresponds to the data consumption of 7 years of uninterrupted ...