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Dark Reading
The Underminr domain-fronting attack allows threat actors to modify Web requests and leverage trusted websites to cloak malicious activity.
The Hacker News
In July 2025, someone registered a domain that used to belong to a content delivery network. The CDN had been wound down years earlier, and the domain it served assets from was allowed to expire. What it had not lost were its callers. Thousands of websites, code repositories, and documentation pages still carry hard-coded references to hostnames beneath it. The new owner holds
The Hacker News
Cybersecurity researchers have disclosed two denial-of-service (DoS) attacks that exploit how major content delivery networks (CDNs) convert client-facing HTTP/3 traffic into HTTP/1.1 requests to the websites they front, amplifying a low-bandwidth request stream by up to 350x against the origin server. The attacks, collectively named "CDN Tsunami," were evaluated against Alibaba, Baidu,
Bleeping Computer
Microsoft is working to resolve an outage affecting its Azure Front Door content delivery network (CDN), which is preventing customers from accessing some Microsoft 365 services. [...]
Krebs on Security
The U.S. government today imposed economic sanctions on Funnull Technology Inc., a Philippines-based company that provides computer infrastructure for hundreds of thousands of websites involved in virtual currency investment scams, commonly known as “pig butchering." In January 2025, KrebsOnSecurity detailed how Funnull was being used as a content delivery network that catered to cybercriminals seeking to route their traffic through U.S.-based cloud providers.
The Hacker News
Cybersecurity researchers have uncovered a widespread phishing campaign that uses fake CAPTCHA images shared via PDF documents hosted on Webflow's content delivery network (CDN) to deliver the Lumma stealer malware. Netskope Threat Labs said it discovered 260 unique domains hosting 5,000 phishing PDF files that redirect victims to malicious websites. "The attacker uses SEO to trick victims into
The Hacker News
Various industrial organizations in the Asia-Pacific (APAC) region have been targeted as part of phishing attacks designed to deliver a known malware called FatalRAT. "The threat was orchestrated by attackers using legitimate Chinese cloud content delivery network (CDN) myqcloud and the Youdao Cloud Notes service as part of their attack infrastructure," Kaspersky ICS CERT said in a Monday
The Hacker News
A widespread phishing campaign has been observed leveraging bogus PDF documents hosted on the Webflow content delivery network (CDN) with an aim to steal credit card information and commit financial fraud. "The attacker targets victims searching for documents on search engines, resulting in access to malicious PDF that contains a CAPTCHA image embedded with a phishing link, leading them to
The Register
Also, Subaru web portal spills user deets, Tornado Cash sanctions overturned, a Stark ransomware attack, and more Using a custom-built tool, a 15-year-old hacker exploited Cloudflare's content delivery network to approximate the locations of users of apps like Signal, Discord, and others.… Infosec in brief
Bleeping Computer
A security researcher discovered a flaw in Cloudflare's content delivery network (CDN), which could expose a person's general location by simply sending them an image on platforms like Signal and Discord. [...]