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DDoS attacks hit record scale as 1 Tbps+ campaigns become more common

Cloudflare's H1 2026 report shows record DDoS scale, with more 1 Tbps+ attacks, multi-vector campaigns, and hacktivist surges against governments.

Cloudflare's H1 2026 DDoS Threat Report documents record-scale attacks, with a significant increase in campaigns exceeding 1 Tbps and April 2026 peaking at 6.46 trillion requests and 165 PB. Most network-layer attacks stayed small and short — 96.62% under 500 Mbps and 90.60% under 10 minutes — but multi-vector campaigns combining HTTP floods with DNS and CLDAP amplification grew. Operation Epic Fury drove 149 hacktivist DDoS claims against 110 organizations in 16 countries, hitting the government sector hardest, and Brazil overtook the US as the leading attack source country.

Help Net Security · Aug 13, 2026Threat actor in the wild

Week in review: Salesforce and ServiceNow portals exposed for 17 months, exploited Metabase 0-day

Weekly digest: exploited Metabase zero-day breached Framework; Salesforce/ServiceNow portals read for 17 months; Microsoft patched 400+ flaws.

Help Net Security's week in review aggregates top stories: a 'City-Forum' campaign tracked by Reco has been pulling records from Salesforce and ServiceNow portals worldwide for 17 months, and Framework suffered a breach via an exploited Metabase zero-day exposing customer contact and IP data. It also covers Microsoft's August 2026 Patch Tuesday fixing 400+ flaws including exploited zero-day CVE-2026-68820, Cisco's fix for exploited firewall DoS bug CVE-2026-20349 (added to CISA KEV), and a second N-able N-central hotfix for actively exploited CVE-2026-18577. Other items include GitHub expanding Dependabot malware alerts to eight package ecosystems and EU AI Act enforcement beginning on 2 August 2026.

Help Net Security · Aug 16, 2026Industry in the wildCVE-2026-18577CVE-2026-68820CVE-2026-203491