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August 13, 2019 5:00PM
Today, multiple Denial of Service (DoS) vulnerabilities were disclosed for a number of HTTP/2 server implementations. Cloudflare uses NGINX for HTTP/2. Customers using Cloudflare are already protected against these attacks....
June 13, 2019 1:00PM
Yesterday, we celebrated the fifth anniversary of Project Galileo. More than 550 websites are part of this program, and they have something in common: each and every one of them has been subject to attacks in the last month....
March 20, 2019 3:01PM
Today, we're announcing Spectrum for UDP. Spectrum for UDP works the same as Spectrum for TCP: Spectrum sits between your clients and your origin. Incoming connections are proxied through, whilst applying our DDoS protection and IP Firewall rules....
November 28, 2018 7:59PM
Efficient packet dropping is a key part of Cloudflare’s distributed denial of service (DDoS) attack mitigations. In this post, we introduce a new tool in our packet dropping arsenal: L4Drop....
November 12, 2018 11:27AM
It's been a while since we last wrote about Layer 3/4 DDoS attacks on this blog. This is a good news - we've been quietly handling the daily onslaught of DDoS attacks. Since our last write-up, a handful of interesting L3/4 attacks have happened. Let's review them....
September 27, 2018 2:38PM
在过去的几天里，我们观察到隐蔽的放大攻击向量的频次大幅增加，这些放大攻击使用了来自UDP端口11211 的memcached协议。之前我们已经谈论过很多关于互联网上放大攻击的话题。我们最近关于这个主题的两篇博文是：...
July 06, 2018 1:00PM
Internally our DDoS mitigation team is sometimes called "the packet droppers". When other teams build exciting products to do smart things with the traffic that passed through our network, we take joy in discovering novel ways of discarding it....
July 06, 2018 12:00PM
사내에서 DDoS 대응팀은 종종 "패킷 버리는 사람들"이라 불립니다. 다른 팀이 우리 네트워크를 통해 지나가는 트래픽으로 스마트한 일을 하며 신나할 때 우리는 그걸 버리는 여러가지 방법을 찾아가며 즐거워 합니다....
May 21, 2018 8:41PM
With more and more platforms taking the necessary precautions against DDoS attacks like integrating DDoS mitigation services and increasing bandwidth at weak points, Layer 3 and 4 attacks are just not as effective anymore....
April 12, 2018 1:01PM
We are introducing Spectrum, which brings Cloudflare’s security and acceleration to the whole spectrum of TCP ports and protocols for our Enterprise customers. It’s DDoS protection for any box, container or VM that connects to the internet....
April 12, 2018 1:00PM
Introducing Spectrum: a new Cloudflare feature that brings DDoS protection, load balancing, and content acceleration to any TCP-based protocol.Today we are releasing Spectrum....
April 12, 2018 12:59PM
오늘 우리는 Spectrum을 발표 하였습니다: 어떤 TCP 기반의 프로토콜이라도 DDoS 방어, 로드밸런싱 그리고 컨텐츠 가속을 할 수 있는 새로운 Cloudflare의 기능입니다....
March 06, 2018 3:46PM
A week ago we published a story about new amplification attacks using memcached protocol on UDP port 11211. A few things happened since then: Github announced it was a target of 1.3Tbps memcached attack. OVH and Arbor reported similar large attacks with the peak reported at 1.7Tbps....
February 27, 2018 2:38PM
Over last couple of days we've seen a big increase in an obscure amplification attack vector - using the memcached protocol, coming from UDP port 11211. In the past, we have talked a lot about amplification attacks happening on the internet....
February 27, 2018 2:38PM
En los últimos dos días, hemos visto un gran aumento en un extraño vector de ataque de amplificación, que usa el protocolo Memcached, originado del puerto UDP 11211....
