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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 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....
October 07, 2021 2:20 AM
Update on recent VoIP attacks: What should I do if I’m attacked?
Because of the sustained attacks we are observing, we are sharing details on recent attack patterns, what steps they should take before an attack, and what to do after an attack has taken place....
October 01, 2021 12:05 AM
May I ask who’s calling, please? A recent rise in VoIP DDoS attacks
Over the past month, multiple Voice over Internet Protocol (VoIP) providers have been targeted by Distributed Denial of Service (DDoS) attacks from entities claiming to be REvil. ...
August 05, 2021 12:55 PM
Cloudflare Helps K-12s Go Back to School
Cloudflare is excited to announce our Back to School initiative that provides special K-12 Education pricing to help school districts stop cyber attacks while improving web performance....
July 20, 2021 2:07 PM
DDoS attack trends for 2021 Q2
The DDoS attack trends observed over Cloudflare’s network in 2021 Q2 paint a picture that reflects the overall global cyber threat landscape. Here are some highlights of DDoS attack trends observed in 2021 Q2. ...
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....
January 22, 2021 12:00 PM
Network-layer DDoS attack trends for Q4 2020
DDoS attack trends in the final quarter of 2020 defied norms in many ways. For the first time in 2020, Cloudflare observed an increase in the number of large DDoS attacks. Specifically, the number of attacks over 500Mbps and 50K pps saw a massive uptick. ...
January 07, 2021 4:19 PM
Ransom DDoS attacks target a Fortune Global 500 company
In late 2020, a major Fortune Global 500 company was targeted by a Ransom DDoS (RDDoS) attack by a group claiming to be the Lazarus Group. Cloudflare quickly onboarded them to the Magic Transit service and protected them against the lingering threat. ...
November 18, 2020 12:00 PM
Network-layer DDoS attack trends for Q3 2020
In Q3 ‘20, Cloudflare observed a surge in DDoS attacks, with double the number of DDoS attacks and more attack vectors deployed than ever — with a notable surge in protocol-specific DDoS attacks such as mDNS, Memcached, and Jenkins amplification floods....