Back in March my colleague Marek wrote about a Winter of Whopping Weekend DDoS Attacks where we were seeing 400Gbps attacks occurring mostly at the weekends. We speculated that attackers were busy with something else during the week. This winter we've seen a new pattern, and attackers aren't taking the
The Internet is Hostile: Building a More Resilient Network
In a recent post we discussed how we have been adding resilience to our network. The strength of the Internet is its ability to interconnect all sorts of networks — big data centers, e-commerce websites at small hosting companies, Internet Service Providers (ISP), and Content Delivery Networks (CDN) — just to name
How Cloudflare's Architecture Allows Us to Scale to Stop the Largest Attacks
The last few weeks have seen several high-profile outages in legacy DNS and DDoS-mitigation services due to large scale attacks. Cloudflare's customers have, understandably, asked how we are positioned to handle similar attacks. While there are limits to any service, including Cloudflare, we are well architected to withstand these recent
How the Consumer Product Safety Commission is (Inadvertently) Behind the Internet’s Largest DDoS Attacks
The mission of the United State's Government's Consumer Product Safety Commission (CPSC) is to protect consumers from injury by products. It's ironic then that the CPSC is playing an unwitting role in most of the largest DDoS attacks seen on the Internet. To understand how, you need to understand a