After shutting down a ‘phishing-as-a-service’ operation that impacted thousands of victims in 43 countries, INTERPOL recently noted, “Cyberattacks such as phishing may be borderless and virtual in nature, but their impact on victims is real and devastating.” Business email compromise (BEC), a type of malware-less attack that tricks recipients into transferring funds — for example […]
Archive by Author
Wasm core dumps and debugging Rust in Workers
A clear sign of maturing for any new programming language or environment is how easy and efficient debugging them is. Programming, like any other complex task, involves various challenges and potential pitfalls. Logic errors, off-by-ones, null pointer dereferences, and memory leaks are some examples of things that can make software developers desperate if they can't […]
Introducing per hostname TLS settings — security fit to your needs
One of the goals of Cloudflare is to give our customers the necessary knobs to enable security in a way that fits their needs. In the realm of SSL/TLS, we offer two key controls: setting the minimum TLS version, and restricting the list of supported cipher suites. Previously, these settings applied to the entire domain, […]
Project Cybersafe Schools: Bringing security tools for free to small K-12 school districts in the US
Like other under-resourced organizations, schools face cyber attacks from malicious actors that can impact their ability to safely perform their basic function: teach children. Schools face email, phishing, and ransomware attacks that slow access and threaten leaks of confidential student data. And these attacks have real effects. In a report issued at the end of […]
Unmasking the top exploited vulnerabilities of 2022
The Cybersecurity and Infrastructure Security Agency (CISA) just released a report highlighting the most commonly exploited vulnerabilities of 2022. With our role as a reverse proxy to a large portion of the Internet, Cloudflare is in a unique position to observe how the Common Vulnerabilities and Exposures (CVEs) mentioned by CISA are being exploited on […]
Integrate Cloudflare Zero Trust with Datadog Cloud SIEM
Cloudflare's Zero Trust platform helps organizations map and adopt a strong security posture. This ranges from Zero Trust Network Access, a Secure Web Gateway to help filter traffic, to Cloud Access Security Broker and Data Loss Prevention to protect data in transit and in the cloud. Customers use Cloudflare to verify, isolate, and inspect all […]
Cloudflare Radar's new BGP origin hijack detection system
Border Gateway Protocol (BGP) is the de facto inter-domain routing protocol used on the Internet. It enables networks and organizations to exchange reachability information for blocks of IP addresses (IP prefixes) among each other, thus allowing routers across the Internet to forward traffic to its destination. BGP was designed with the assumption that networks do […]
Routing information now on Cloudflare Radar
Routing is one of the most critical operations of the Internet. Routing decides how and where the Internet traffic should flow from the source to the destination, and can be categorized into two major types: intra-domain routing and inter-domain routing. Intra-domain routing handles making decisions on how individual packets should be routed among the servers […]
Q2 2023 Internet disruption summary
Cloudflare operates in more than 300 cities in over 100 countries, where we interconnect with over 12,000 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 […]
How Cloudflare is staying ahead of the AMD vulnerability known as “Zenbleed”
The Google Information Security Team revealed a new flaw in AMD's Zen 2 processors in a blog post today. The 'Zenbleed' flaw affects the entire Zen 2 product stack, from AMD's EPYC data center processors to the Ryzen 3000 CPUs, and can be exploited to steal sensitive data processed in the CPU, including encryption keys […]
