The most striking finding is the explosion in the number of hyper-volumetric attacks. Cloudflare mitigated 935 network-layer DDoS attacks exceeding 1 Tbps in H1 2026, compared to just 219 in the fourth quarter of 2025 . The growth accelerated sharply from Q1 to Q2: 130 attacks over 1 Tbps were recorded in Q1, rising to 805 in Q2 — a sixfold increase . Some sources characterize this as a fivefold increase between those two quarters . Overall, the number of 1 Tbps attacks rose 519% quarter-over-quarter . Cloudflare notes that attackers now deliver attacks of this magnitude "at a cadence measured in hundreds per quarter" .
Despite this surge in the largest attacks, 2026 did not set new records for the size of individual attacks. That distinction belongs to 2025, when the record climbed from 5.6 Tbps in January to 31.4 Tbps in December . In H1 2026, April was the peak month, with Cloudflare clocking a maximum of 6.46 Tbps .
The report documents a clear shift in the center of gravity for attack vectors, moving away from botnet floods toward reflection and amplification techniques . DNS-based attacks — which include both DNS Flood and DNS Amplification — became the dominant vector, accounting for 34.3% of all network-layer activity in H1 2026 . DNS Floods alone climbed from 25.7% to 40.0% of network-layer attacks quarter-over-quarter . CLDAP Floods surged 580% quarter-over-quarter, becoming the third most common vector in Q2 . Cloudflare's own summary notes that these attacks were "driven heavily by DNS and CLDAP reflection vectors" .
Beyond volumetric attacks, the report also warns of a rise in precision Layer 7 attacks. These attacks produce no volumetric signal, making them invisible to detection logic tuned for bandwidth and packet rate. As a result, APIs remain a consistently unprotected surface, with misconfigured or absent rate-limit rules and incomplete WAF coverage leaving endpoints exposed .
Geopolitical conflicts heavily shaped targeting patterns in H1 2026. Ongoing wars in Ukraine and Iran, along with the FIFA World Cup, drove a wave of geopolitically motivated DDoS attacks against media organizations . The media, production, and publishing sector was the most targeted industry, accounting for 14.2% of all DDoS attacks launched since January 1 . Over the first six months of the year, the sector saw nearly four times the number of attacks leveled at the second most targeted industry . The shifting geopolitical landscape fundamentally reshaped which countries and industries were most frequently targeted .
Cloudflare's network mitigated 23.2 million network-layer DDoS attacks in H1 2026 — equivalent to roughly 5,343 attacks per hour, or about 128,000 per day . In addition, the company handled 29.64 trillion HTTP DDoS requests in the same period . These numbers continue a trend of year-over-year growth; in all of 2025, Cloudflare observed 47.1 million DDoS attacks, with network-layer attacks more than tripling year-over-year .
While the report and coverage of it mention law enforcement in the broader context of cyber threats, the available sources do not provide specific details on law enforcement actions or their impact on DDoS trends in H1 2026. The report's primary focus is on attack volumes, vectors, and geopolitical drivers.
The most striking finding is the explosion in the number of hyper-volumetric attacks. Cloudflare mitigated 935 network-layer DDoS attacks exceeding 1 Tbps in H1 2026, compared to just 219 in the fourth quarter of 2025 . The growth accelerated sharply from Q1 to Q2: 130 attacks over 1 Tbps were recorded in Q1, rising to 805 in Q2 — a sixfold increase . Some sources characterize this as a fivefold increase between those two quarters . Overall, the number of 1 Tbps attacks rose 519% quarter-over-quarter . Cloudflare notes that attackers now deliver attacks of this magnitude "at a cadence measured in hundreds per quarter" .
Despite this surge in the largest attacks, 2026 did not set new records for the size of individual attacks. That distinction belongs to 2025, when the record climbed from 5.6 Tbps in January to 31.4 Tbps in December . In H1 2026, April was the peak month, with Cloudflare clocking a maximum of 6.46 Tbps .
The report documents a clear shift in the center of gravity for attack vectors, moving away from botnet floods toward reflection and amplification techniques . DNS-based attacks — which include both DNS Flood and DNS Amplification — became the dominant vector, accounting for 34.3% of all network-layer activity in H1 2026 . DNS Floods alone climbed from 25.7% to 40.0% of network-layer attacks quarter-over-quarter . CLDAP Floods surged 580% quarter-over-quarter, becoming the third most common vector in Q2 . Cloudflare's own summary notes that these attacks were "driven heavily by DNS and CLDAP reflection vectors" .
Beyond volumetric attacks, the report also warns of a rise in precision Layer 7 attacks. These attacks produce no volumetric signal, making them invisible to detection logic tuned for bandwidth and packet rate. As a result, APIs remain a consistently unprotected surface, with misconfigured or absent rate-limit rules and incomplete WAF coverage leaving endpoints exposed .
Geopolitical conflicts heavily shaped targeting patterns in H1 2026. Ongoing wars in Ukraine and Iran, along with the FIFA World Cup, drove a wave of geopolitically motivated DDoS attacks against media organizations . The media, production, and publishing sector was the most targeted industry, accounting for 14.2% of all DDoS attacks launched since January 1 . Over the first six months of the year, the sector saw nearly four times the number of attacks leveled at the second most targeted industry . The shifting geopolitical landscape fundamentally reshaped which countries and industries were most frequently targeted .
Cloudflare's network mitigated 23.2 million network-layer DDoS attacks in H1 2026 — equivalent to roughly 5,343 attacks per hour, or about 128,000 per day . In addition, the company handled 29.64 trillion HTTP DDoS requests in the same period . These numbers continue a trend of year-over-year growth; in all of 2025, Cloudflare observed 47.1 million DDoS attacks, with network-layer attacks more than tripling year-over-year .
While the report and coverage of it mention law enforcement in the broader context of cyber threats, the available sources do not provide specific details on law enforcement actions or their impact on DDoS trends in H1 2026. The report's primary focus is on attack volumes, vectors, and geopolitical drivers.