Cloudflare Mitigated Record DDoS Attack
The cybersecurity firm blocked a massive 22.2 terabits per second attack in October.
Updated on Oct. 10, 2026 in Cybersecurity
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Cloudflare has automatically mitigated a record-breaking distributed denial-of-service (DDoS) attack that reached a peak of 22.2 terabits per second. The surge targeted a European network infrastructure company and lasted for 40 seconds.
Why it matters
The attack represents a significant escalation in internet-scale threats, nearly doubling the previous record volume of 11.5 terabits per second. This event highlights the growing capability of botnets to overwhelm network infrastructure through extreme bandwidth flooding.
The attack generated 10.6 billion packets per second, utilizing a UDP flood from a global network of infected household devices. The previous record, set in September 2026, was 11.5 terabits per second.
The players
Cloudflare
Cloudflare is a global web infrastructure and cybersecurity firm that provides content delivery network and DDoS mitigation services.
The details
The assault utilized a massive network of compromised household systems to direct a UDP flood against a single IP address belonging to a European network infrastructure provider. By using a 40-second window, the attackers attempted to overwhelm automated defense systems before they could fully respond.
Timeline
In May 2025, Cloudflare blocked a 7.3 Tbps DDoS attack.
In September 2026, the company mitigated an 11.5 Tbps attack.
The record 22.2 Tbps attack occurred in October 2026.
The Tech Race
This event demonstrates a rapid escalation in the scale of cyberattacks, significantly outpacing the record set just one month prior. The increase in bandwidth reflects the growing threat posed by massive botnets composed of insecure household electronics.
While Cloudflare successfully mitigated this specific attack without public outages, such incidents underscore the vulnerability of connected smart devices used in home networks. Users should ensure their IoT devices are updated to prevent them from being recruited into malicious botnets.
The takeaway
Large-scale DDoS attacks are increasing in frequency and power as hackers exploit millions of insecure devices to flood network infrastructure. Strengthening the security of home routers and IoT devices is essential to prevent these systems from being leveraged in global cyber campaigns.
Further reading
For more on how major networks defend against traffic surges, visit the /tech/cybersecurity/ section.
Source note: This article includes information reported by GCN.
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