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Background for this topic.
Cloudflare operates a global content delivery and security network that sits between internet users and websites or services. It provides distributed denial-of-service (DDoS) mitigation, web application firewall (WAF) capabilities, and secure DNS resolution, helping to filter malicious traffic and improve site availability. By proxying traffic through its edge servers, Cloudflare can inspect, block, or rate-limit requests based on threat intelligence and configured security policies.
From an information security perspective, Cloudflare’s platform introduces critical considerations around trust and attack surface. Organizations relying on it must monitor for vulnerabilities in its software stack and configuration errors that could expose sensitive data or allow bypass of protections. Additionally, Cloudflare’s role as a traffic intermediary means that any compromise or misconfiguration could impact confidentiality and integrity of data in transit, making careful management of encryption and access controls essential.
Weekly headline count for the current query.
The CI/CD workflow weakness affects Microsoft's Azure Sentinel, Google's AI Agent Development Kit, Apache's Doris analytics database, Cloudflare's Workers SDK, and Python Software Foundation's Black.
Makers of Chrome, Edge, Firefox back bot-fraud defense called Private Access Control Tokens
Cybersecurity researchers have discovered a remote denial-of-service exploit that affects major web servers, including NGINX, Apache HTTPD, Microsoft IIS, Envoy, and Cloudflare Pingora
FBI director site went offline after a hack used a fake Cloudflare page to trick users into running a ClickFix attack that installed malware. The merchandise website of FBI director Kash Patel (basedapparel[.]com) was taken offline on Friday after reports that it had been compromised by hackers using it to spread malware. The malware was […]
Also: Rethinking SASE and AI's Impact on the Cyber WorkforceIn this week's panel, four ISMG editors discussed what the Musk vs. Altman trial exposed about OpenAI's governance program, how AI is reshaping the way enterprises think about security and why Cisco, Cloudflare, Arctic Wolf and other firms are redesigning their workforces for the AI era.
Cloud Connectivity, Security Operations Providers Reportedly Chop 20%, 7% of StaffCloudflare cut more than 1,100 workers from its 5,483-person staff, saying the layoffs will align Cloudflare's operations with AI-driven workflows and productivity gains. And Arctic Wolf laid off 250 workers from its estimated staff of 3,402 to free resources for investment in AI initiatives.
Threat actors are using adversary-in-the-middle (AitM) phishing pages to seize control of TikTok for Business accounts in a new campaign, according to a report from Push Security
Cloudflare Threat Report warns that AI tools enable attackers who lacked required skills to generate effective attacks rapidly and at scale
UK leaps to sixth in global flood charts as mega-swarm unleashes 31.4 Tbps Yuletide pummeling Cloudflare says DDoS crews ended 2025 by pushing traffic floods to new extremes, while Britain made an unwelcome leap of 36 places to become the world's sixth-most targeted location.…
The distributed denial-of-service (DDoS) botnet known as AISURU/Kimwolf has been attributed to a record-setting attack that peaked at 31.4 Terabits per second (Tbps) and lasted only 35 seconds
Recent major cloud service outages have been hard to miss. High-profile incidents affecting providers such as AWS, Azure, and Cloudflare have disrupted large parts of the internet, taking down websites and services that many other systems depend on. The resulting ripple effects have halted applications and workflows that many organizations rely on every day
Cloudflare has shared more details about a recent 25-minute Border Gateway Protocol (BGP) route leak affecting IPv6 traffic, which caused measurable congestion, packet loss, and approximately 12 Gbps of dropped traffic. [...]
ACME validation had a challenge-request hole Cloudflare has fixed a flaw in its web application firewall (WAF) that allowed attackers to bypass security rules and directly access origin servers, which could lead to data theft or full server takeover.…
Cloudflare has addressed a security vulnerability impacting its Automatic Certificate Management Environment (ACME) validation logic that made it possible to bypass security controls and access origin servers. "The vulnerability was rooted in how our edge network processed requests destined for the ACME HTTP-01 challenge path (/.well-known/acme-challenge/*)," the web infrastructure
OG CDN boss says fighting illegal streams is about stopping criminals cashing in, not free speech Interview After Cloudflare CEO Matthew Prince recently threatened to disrupt the Winter Olympics to protect free speech after Italian authorities fined his company for not disrupting pirate video streams, rival CDN provider Akamai’s CEO Dr. Tom Leighton fired back with what reads a lot like thinly veiled criticism.…
The phishing campaign shows how attackers continue to weaponize legitimate cloud services and open source tools to evade detection and gain trust.
Threat actors exploited Cloudflare's free-tier infrastructure and legitimate Python environments to deploy the AsyncRAT remote access trojan, demonstrating advanced evasion techniques that abuse trusted cloud services for malicious operations.
Suggests rotten routing, not evidence of a cyber-strike before kinetic action Cloudflare has poured cold water on a theory that the USA’s incursion into Venezuela coincided with a cyberattack on telecoms infrastructure.…
Security community needs to rally and share more info faster, one researcher says Amid new reports of attackers pummeling a maximum security hole (CVE-2025-55182) in the React JavaScript library, Cloudflare's technology chief said his company took down its own network, forcing a widespread outage early Friday, to patch React2Shell.…
Outage Briefly Took Down Zoom, LinkedIn and Other WebsitesContent delivery network giant Cloudflare is investigating a brief outage early Friday that took down multiple websites. The incident marks the second outage in the span of a month, although the causes are unrelated. It stemmed from how Cloudflare's web application firewall parses requests.