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Cloudflare blocks largest DDoS attack - here's how to protect yourself

oxygen/Getty Cloudflare is a robust content delivery network (CDN) that specializes in providing protection against distributed denial of service (DDoS) attacks. Last month, Cloudflare blocked the largest DDoS attack in internet history. This assault peaked at a staggering 7.3 terabits per second (Tbps). That's a data deluge, equivalent to streaming nearly 10,000 high-definition movies in under a minute. The attack targeted an unnamed hosting provider using Cloudflare's Magic Transit DDoS pro

How Cloudflare blocked a monumental 7.3 Tbps DDoS attack

9 min read This post is also available in Français ไทย and Deutsch In mid-May 2025, Cloudflare blocked the largest DDoS attack ever recorded: a staggering 7.3 terabits per second (Tbps). This comes shortly after the publication of our DDoS threat report for 2025 Q1 on April 27, 2025, where we highlighted attacks reaching 6.5 Tbps and 4.8 billion packets per second (pps). The 7.3 Tbps attack is 12% larger than our previous record and 1 Tbps greater than a recent attack reported by cyber securit

Defending the Internet: how Cloudflare blocked a monumental 7.3 Tbps DDoS attack

9 min read This post is also available in Français Nederlands and Español In mid-May 2025, Cloudflare blocked the largest DDoS attack ever recorded: a staggering 7.3 terabits per second (Tbps). This comes shortly after the publication of our DDoS threat report for 2025 Q1 on April 27, 2025, where we highlighted attacks reaching 6.5 Tbps and 4.8 billion packets per second (pps). The 7.3 Tbps attack is 12% larger than our previous record and 1 Tbps greater than a recent attack reported by cyber

Cloudflare blocks record 7.3 Tbps DDoS attack against hosting provider

Cloudflare says it mitigated a record-breaking distributed denial of service (DDoS) attack in May 2025 that peaked at 7.3 Tbps, targeting a hosting provider. DDoS attacks flood targets with massive amounts of traffic with the sole aim to overwhelm servers and create service slowdowns, disruptions, or outages. This new attack, which is 12% larger than the previous record, delivered a massive data volume of 37.4 TB in just 45 seconds. This is the equivalent of about 7,500 hours of HD streaming o