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March 08, 2022 3:22 PM
CVE-2022-26143: A Zero-Day vulnerability for launching UDP amplification DDoS attacks
A zero-day vulnerability in the Mitel MiCollab business phone system has recently been discovered (CVE-2022-26143). This vulnerability, called TP240PhoneHome, which Cloudflare customers are already protected against, can be used to launch UDP amplification attacks...
January 10, 2022 1:58 PM
DDoS Attack Trends for Q4 2021
In Q4, we observed a 95% increase in L3/4 DDoS attacks and record-breaking levels of Ransom DDoS attacks. The Manufacturing industry was the most targeted alongside a 5,800% increase in SNMP-based DDoS attacks and massive campaigns against VoIP providers around the world...
November 29, 2021 6:30 PM
Attack Maps now available on Radar
We love line and bar graphs, but some data is best represented with different visualizations. We’re introducing world maps and sankey visualizations as part of Radar Maps, which are being used today to show you the top layer 7 attacks in real time....
November 13, 2021 2:33 PM
Cloudflare blocks an almost 2 Tbps multi-vector DDoS attack
Earlier this week, Cloudflare automatically detected and mitigated a DDoS attack that peaked just below 2 Tbps — the largest we’ve seen to date....
November 09, 2021 12:59 PM
A Brief History of the Meris Botnet
Over the past months, we’ve been tracking and analyzing the activity of the Meris botnet....
November 04, 2021 12:58 PM
DDoS Attack Trends for Q3 2021
In Q3, 2021 we saw and mitigated record-setting HTTP DDoS attacks, terabit-strong network layer attacks, one of the largest botnets ever deployed (Meris), and more recently, ransom attacks on Voice-over-IP (VoIP) service providers....
March 26, 2021 1:00 PM
Mitigating Bot Attacks against Cloudflare
The word “bots” on the Internet is a fairly loaded one. My earliest ‘bot’ experience was on IRC, where bots were quite helpful in making sure your favorite channel didn’t get taken over by malicious users and allowed for fun games of trivia....
March 23, 2021 1:00 PM
Anatomy of a Targeted Ransomware Attack
Imagine your most critical systems suddenly stop operating. And then someone demands a ransom to get your systems working again. Or someone launches a DDoS against you and demands a ransom to make it stop. That’s the world of ransomware and ransom DDoS....
February 26, 2021 11:00 PM
Flow-based monitoring for Magic Transit
Today, we’re announcing new functionality to improve the experience for on demand Magic Transit customers: flow-based monitoring. Flow-based monitoring allows us to detect and notify customers when they’re under attack so they can activate Magic Transit for protection....
December 22, 2020 12:00 PM
Beat - An Acoustics Inspired DDoS Attack
On the week of Black Friday, Cloudflare automatically detected and mitigated “Beat” - an acoustics inspired DDoS attacks that targeted a Magic Transit customer.
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October 05, 2020 11:00 AM
Know When You’ve Been DDoS’d
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....
September 16, 2020 11:00 AM
Moobot vs. Gatebot: Cloudflare Automatically Blocks Botnet DDoS Attack Topping At 654 Gbps
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...
July 09, 2020 11:00 AM
Mitigating a 754 Million PPS DDoS Attack Automatically
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....
June 02, 2020 8:12 PM
Cyberattacks since the murder of George Floyd
As we’ve often seen in the past, real world protest and violence is usually accompanied by attacks on the Internet. This past week has been no exception. ...