Cloudflare Successfully Thwarts Unprecedented 11.5 Tbps DDoS Attack
Cloudflare announced on Tuesday that it effectively mitigated a record-breaking volumetric distributed denial-of-service (DDoS) attack that peaked at 11.5 terabits per second (Tbps). In a recent post on X, the web infrastructure and security provider revealed, “In recent weeks, we’ve autonomously blocked numerous hyper-volumetric DDoS attacks, with the largest reaching peaks of 5.1 Bbps and 11.5 Tbps.” The attack, primarily a UDP flood originating from Google Cloud, lasted only about 35 seconds, highlighting the company’s robust defense mechanisms at work. Volumetric DDoS attacks aim to overwhelm a target with excessive traffic, causing server slowdowns or failures, often resulting in network congestion, packet loss, and service disruptions. Typically, these attacks are executed using botnets controlled by threat actors.
Cloudflare Defends Against Unprecedented 11.5 Tbps DDoS Attack On September 3, 2025, Cloudflare announced that it successfully thwarted a staggering volumetric distributed denial-of-service (DDoS) attack, which peaked at an astonishing 11.5 terabits per second (Tbps). The web infrastructure and security firm reported that the attack was part of a series…
Cloudflare Successfully Thwarts Unprecedented 11.5 Tbps DDoS Attack
Cloudflare announced on Tuesday that it effectively mitigated a record-breaking volumetric distributed denial-of-service (DDoS) attack that peaked at 11.5 terabits per second (Tbps). In a recent post on X, the web infrastructure and security provider revealed, “In recent weeks, we’ve autonomously blocked numerous hyper-volumetric DDoS attacks, with the largest reaching peaks of 5.1 Bbps and 11.5 Tbps.” The attack, primarily a UDP flood originating from Google Cloud, lasted only about 35 seconds, highlighting the company’s robust defense mechanisms at work. Volumetric DDoS attacks aim to overwhelm a target with excessive traffic, causing server slowdowns or failures, often resulting in network congestion, packet loss, and service disruptions. Typically, these attacks are executed using botnets controlled by threat actors.