Know When You’ve Been DDoS’d
October 05, 2020 11:00 AM
Today we’re announcing the availability of DDoS attack alerts. The alerts are available for free for all Cloudflare’s customers on paid plans. Learn how to create an alert....
Moobot vs. Gatebot: Cloudflare Automatically Blocks Botnet DDoS Attack Topping At 654 Gbps
September 16, 2020 11:00 AM
On July 3, Cloudflare’s global DDoS protection system, Gatebot, automatically detected and mitigated a UDP-based DDoS attack that peaked at 654 Gbps. The attack was part of a ten-day multi-vector DDoS campaign targeting a Magic Transit customer and was mitigated without any human intervention....
Network-layer DDoS attack trends for Q2 2020
August 05, 2020 1:00 PM
This quarter, we saw an increasing number of large scale attacks; both in terms of packet rate and bit rate. In fact, 88% of all DDoS attacks in 2020 that peaked above 100 Gbps were launched after shelter-in-place went into effect in March....
flowtrackd: DDoS Protection with Unidirectional TCP Flow Tracking
July 14, 2020 11:00 AM
flowtrackd is a software-defined DDoS protection system that significantly improves our ability to automatically detect and mitigate even the most complex TCP-based DDoS attacks. If you are a Magic Transit customer, this feature will be enabled by default at no additional cost on July 29, 2020....
Mitigating a 754 Million PPS DDoS Attack Automatically
July 09, 2020 11:00 AM
On June 20, Cloudflare automatically mitigated a highly volumetric DDoS attack that peaked above 754 million packets per second. The attack was part of an organized four day campaign starting on June 18 and ending on June 21....
MORE POSTS
May 15, 2020 11:00 AM
Network-Layer DDoS Attack Trends for Q1 2020
In Q1 2020, traffic levels have increased by over 50% in many countries, but have DDoS attacks increased as well?...
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April 30, 2020 3:26 PM
DDoS attacks have evolved, and so should your DDoS protection
Building a modern DDoS solution that is truly effective in thwarting ever-evolving DDoS attacks, to protect all of our customers has been a core tenet for us - enabling us to be an industry leader....
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April 13, 2020 7:06 PM
Cloudflare for SSH, RDP and Minecraft
Cloudflare now covers SSH, RDP and Minecraft, offering DDoS protection and increased network performance. Spectrum pay-as-you-go now available on all paid plans....
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April 10, 2020 11:00 AM
Rolling With The Punches: Shifting Attack Tactics & Dropping Packets Faster & Cheaper At The Edge
Over the past 6 months, volumetric DDoS attacks decreased by 82%. However volumetric attacks are not gone yet, still peaking as high as 418 Gbps. In this post, we cover the changing attack landscape and how Cloudflare adapts and evolves to keep the internet safe....
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March 16, 2020 12:00 PM
Announcing Network Analytics
Back in March 2019, we released Firewall Analytics which provides insights into HTTP security events across all of Cloudflare's protection suite; Firewall rule matches, HTTP DDoS Attacks, Site Security Level which harnesses Cloudflare's threat intelligence, and more....
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October 24, 2019 1:00 PM
Who DDoS'd Austin?
It was a scorching Monday on July 22 as temperatures soared above 37°C (99°F) in Austin, TX, the live music capital of the world. Only hours earlier, the last crowds dispersed from the historic East 6th Street entertainment district. ...
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August 13, 2019 5:00 PM
On the recent HTTP/2 DoS attacks
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....
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June 13, 2019 1:00 PM
Protecting Project Galileo websites from HTTP attacks
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....
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March 20, 2019 3:01 PM
Spectrum for UDP: DDoS protection and firewalling for unreliable protocols
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. ...
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November 28, 2018 7:59 PM
L4Drop: XDP DDoS Mitigations
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....
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November 12, 2018 11:27 AM
The rise of multivector DDoS attacks
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....
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July 06, 2018 1:00 PM
How to drop 10 million packets per second
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....
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May 21, 2018 8:41 PM
Rate Limiting: Delivering more rules, and greater control
With more platforms adopting DDoS safeguards like integrating mitigation services and enhancing bandwidth at vulnerable points, Layer 3 and 4 attacks are becoming far less effective than before....
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April 12, 2018 1:01 PM
Introducing Spectrum: Extending Cloudflare To 65,533 More Ports
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....
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