Corero Network Security Finds Most DDoS Attacks Now Evade Traditional Defenses as AI Drives Faster, Multi-Vector Threats

Corero Network Security has released its 2026 Threat Intelligence Report, revealing a significant transformation in the landscape of Distributed Denial of Service (DDoS) attacks. The report highlights that traditional defenses are increasingly ineffective against modern attack strategies, largely driven by advancements in artificial intelligence (AI). Analysis from Corero’s Threat Research Team indicates that attackers are employing automated, low-volume tactics and multipronged approaches, rendering many conventional detection methods obsolete.

Key findings from the report show that over half of sub-1 Gbps attacks are below 200 Mbps, allowing them to blend undetected with regular traffic while probing for vulnerabilities. Attackers have adapted to deploy six-second burst attacks that eliminate the possibility for timely manual defenses. Additionally, the complexity of attacks has escalated, with campaigns using over 50 vectors and changing tactics in real-time to evade detection.

Notably, peak attack sizes have surged by 262% year-over-year, with terabit-scale assaults occurring within seconds, and more than 90% of attacks lasting under 10 minutes. This rapid evolution in attack methods underscores the necessity for organizations to shift their defensive strategies. Carl Herberger, CEO of Corero Network Security, emphasizes that the era of treating major attacks as exceptional events is over; small, fast, and intricate attacks have become the norm.

To combat these emerging threats, organizations must adopt automatic, always-on protection systems capable of real-time mitigation. Corero’s Cyber Resilience platform, featuring SmartWall ONE™, offers such solutions, providing continuous visibility and proactive defense at the network edge. As the threat landscape evolves, the report underscores the need for businesses to rethink their cybersecurity approaches in order to safeguard service availability effectively.

The recent findings from Corero Network Security's 2026 Threat Intelligence Report signal a pivotal moment for businesses reliant on traditional cybersecurity infrastructures. The data reveals a significant evolution in Distributed Denial-of-Service (DDoS) attacks, as sophisticated adversaries increasingly employ AI to orchestrate multi-vector threats that can overwhelm defenses systematically and seamlessly.

Key insights suggest that many organizations may underestimate the impact of "invisible" sub-200 Mbps attacks that blend into normal traffic. With studies indicating that peak attack sizes have soared by 262% year-over-year, coupled with the trend of short-lived, multi-pronged assaults, it's clear that past strategies focused on threshold-based detection are inadequate. The report stresses the urgent need for businesses to adopt an always-on, automated protection approach that is capable of continuous traffic analysis and real-time mitigation.

To maintain operational resiliency and safeguard service availability, decision-makers should consider investing in advanced cybersecurity solutions akin to Corero's Cyber Resilience platform. Such solutions proactively stop attacks before they disrupt services, providing organizations the resilience needed in a landscape where cyber threats are increasingly routine.

Furthermore, companies should enhance their cybersecurity budgets to accommodate the adoption of this technology, but also invest in employee training on the latest threat landscapes. A cohesive strategy centered on continuous visibility, automated defenses, and rapid response capabilities is paramount.

In essence, organizations that fail to adapt to this new reality may face substantial service disruptions and reputation damage. Thus, proactively reevaluating and modernizing their defenses is not just a precaution—it’s essential for survival in today’s digital environment.