Cloudflare stops new largest DDoS attack over Labor Day weekend
7 days ago
- #Cybersecurity
- #Cloudflare
- #DDoS
- Cloudflare stopped a record-breaking DDoS attack peaking at 11.5 Tbps over Labor Day weekend.
- The attack was a hyper-volumetric UDP flood, lasting 35 seconds and delivering over 5.1 billion packets per second.
- Sources included compromised Google Cloud accounts and other IoT/cloud providers.
- UDP flood attacks overwhelm targets by saturating bandwidth and exhausting compute resources.
- Cloudflare's autonomous mitigation network neutralized the attack without manual intervention.
- DDoS attacks have surged, with 6,500 hyper-volumetric attacks blocked in Q2 2025 (71 per day).
- Cloudflare blocked 27.8 million DDoS attacks by July 2025, exceeding 2024's total.
- Attackers increasingly exploit cloud and IoT botnets for short, intense attacks.
- Businesses are urged to adopt DDoS prevention services like Cloudflare, Akamai, or Imperva.