We’re excited to announce that the Sucuri Web Application Firewall (WAF) now supports HTTP/3, the latest version of the HTTP protocol. This upgrade brings significant performance improvements and enhanced security features to all websites protected by our WAF. The best part? It works automatically – if your visitor’s browser supports HTTP/3, they’ll immediately benefit from […]
Archive | Security
RSS feed for this sectionA diversity of downtime: the Q4 2024 Internet disruption summary
Cloudflare’s network spans more than 330 cities in over 120 countries, where we interconnect with over 13,000 network providers in order to provide a broad range of services to millions of customers. The breadth of both our network and our customer base provides us with a unique perspective on Internet resilience, enabling us to observe […]
Cloudflare meets new Global Cross-Border Privacy (CBPR) standards
Cloudflare proudly leads the way with our approach to data privacy and the protection of personal information, and we’ve been an ardent supporter of the need for the free flow of data across jurisdictional borders. So today, on Data Privacy Day (also known internationally as Data Protection Day), we’re happy to announce that we’re adding […]
Cloudflare thwarts over 47 million cyberthreats against Jewish and Holocaust educational websites
January 27 marks the International Holocaust Remembrance Day — a solemn occasion to honor the memory of the six million Jews who perished in the Holocaust, along with countless others who fell victim to the Nazi regime’s campaign of hatred and intolerance. This tragic chapter in human history serves as a stark reminder of the […]
Malware Redirects WordPress Traffic to Harmful Sites
Recently, a customer approached us after noticing their website was redirecting visitors to a suspicious URL. They suspected their site had been compromised and sought assistance in identifying and resolving the issue. This prompted a deeper investigation into the infection and its behavior. What did we see? The website’s redirects were leading to hxxps://cdn1[.]massearchtraffic[.]top/sockets. Continue […]
Record-breaking 5.6 Tbps DDoS attack and global DDoS trends for 2024 Q4
Welcome to the 20th edition of the Cloudflare DDoS Threat Report, marking five years since our first report in 2020. Published quarterly, this report offers a comprehensive analysis of the evolving threat landscape of Distributed Denial of Service (DDoS) attacks based on data from the Cloudflare network. In this edition, we focus on the fourth […]
The fall and rise of TikTok (traffic)
The United States ban on TikTok went into effect on January 19, 2025, and although service began to be restored after just 14 hours, it was only close to the inauguration of Donald Trump as the 47th President of the United States that associated DNS traffic started to recover to closer to previous levels. In […]
TikTok ban takes hold: data reveals sharp traffic decline and rapid shift to alternatives
The United States ban on TikTok went into effect on January 19, 2025, and our data showed a clear impact starting after 03:30 UTC (10:30 PM ET on January 18, 2025). The ban was part of the “Protecting Americans from Foreign Adversary Controlled Applications Act,” proposed in Congress, which ordered ByteDance to divest due to […]
Backdoors: The Hidden Threat Lurking in Your Website
Website backdoors are a silent yet deadly threat to website security. These stealthy mechanisms bypass standard authentication, providing attackers with persistent, unauthorized access to a website’s backend. Often overlooked, backdoors allow cybercriminals to maintain access long after an initial breach. Understanding the risks they pose and how to mitigate them is essential for website owners […]
Japanese Spam on a Cleaned WordPress Site: The Hidden Sitemap Problem
While investigating a compromised WordPress site, we discovered a malware infection causing Japanese spam links to appear in Google search results. Although the site had been cleaned, Google was still crawling and indexing spammy URLs, which impacted the site’s SEO and credibility. Japanese SEO Spam: A Common Threat Japanese SEO spam is a recurring issue […]
