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Cloudflare successfully auto-mitigated a historic 3.8 Tbps DDoS attack

Cloudflare recently set a new milestone in cybersecurity by autonomously mitigating a record-breaking 3.8 Tbps Distributed Denial-of-Service (DDoS) attack. This attack, which targeted financial services, internet, and telecommunications sectors, was part of a month-long barrage of hyper-volumetric DDoS assaults. These attacks overwhelmed targets by bombarding them with massive amounts of data and packet requests, reaching over 2 billion packets per second (Bpps) at their peak.

The 3.8 Tbps attack utilized a global network of compromised devices, including ASUS routers, MikroTik systems, DVRs, and web servers, many of which were in Russia, Vietnam, the U.S., and Brazil. The attackers mainly used the User Datagram Protocol (UDP), a connectionless protocol that allows for rapid data transmission, making it especially effective in DDoS attacks.

Cloudflare's advanced, autonomous mitigation system quickly detected and mitigated the attack within 65 seconds, ensuring uninterrupted service for its clients. The company's ability to handle such massive attacks highlights the importance of large-scale, automated DDoS defense mechanisms that outperform traditional on-premise and less-equipped cloud systems, which could be overwhelmed by the sheer volume of traffic these attacks generate.

The rise in DDoS attacks, fueled partly by hacktivist activities and botnets, poses a growing threat to global industries. Cloudflare's successful defense against this attack marks a significant win for cybersecurity, underscoring the critical role of autonomous systems in fending off large-scale threats.
 

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