cloudflare
Cloudflare mitigates new record-breaking 22.2 Tbps DDoS attack
Cloudflare has mitigated a distributed denial-of-service (DDoS) attack that peaked at a record-breaking 22.2 terabits per second (Tbps) and 10.6 billion packets per second (Bpps). DDoS attacks typically exhaust either system or network resources, aiming to make services slow or unavailable to legitimate users. Record-breaking DDoS attacks are becoming more frequent, as just three weeks ago, […]
Microsoft and Cloudflare disrupt massive RaccoonO365 phishing service
Microsoft and Cloudflare have disrupted a massive Phishing-as-a-Service (PhaaS) operation, known as RaccoonO365, that helped cybercriminals steal thousands of Microsoft 365 credentials. In early September 2025, in coordination with Cloudflare’s Cloudforce One and Trust and Safety teams, Microsoft’s Digital Crimes Unit (DCU) disrupted the cybercrime operation by seizing 338 websites and Worker accounts linked to RaccoonO365. The […]
Cloudflare hit by data breach in Salesloft Drift supply chain attack
Cloudflare is the latest company impacted in a recent string of Salesloft Drift breaches, part of a supply-chain attack disclosed last week. The internet giant revealed on Tuesday that the attackers gained access to a Salesforce instance it uses for internal customer case management and customer support, which contained 104 Cloudflare API tokens. Cloudflare was […]
Cloudflare blocks largest recorded DDoS attack peaking at 11.5 Tbps
Internet infrastructure company Cloudflare said it recently blocked the largest recorded volumetric distributed denial-of-service (DDoS) attack, which peaked at 11.5 terabits per second (Tbps). In volumetric DDoS attacks, attackers overwhelm the target with massive amounts of data, consuming the bandwidth or exhausting system resources, leaving legitimate users with no access to the targeted servers and […]
Cloudflare says 1.1.1.1 outage not caused by attack or BGP hijack
To quash speculation of a cyberattack or BGP hijack incident causing the recent 1.1.1.1 Resolver service outage, Cloudflare explains in a post mortem that the incident was caused by an internal misconfiguration. The outage occurred on July 14 and impacted most users of the service all over the world, rendering internet services unavailable in many […]
Cloudflare open-sources Orange Meets with End-to-End encryption
Cloudflare has implemented end-to-end encryption (E2EE) to its video calling app Orange Meets and open-sourced the solution for transparency. The application has been available since last year when the internet giant launched it as a demo for Cloudflare Calls (now Realtime). With the introduction of E2EE and the resolution of various trust and verification issues, users interested in […]
Russia’s throttling of Cloudflare makes sites inaccessible
Starting June 9, 2025, Russian internet service providers (ISPs) began throttling access to websites and services protected by Cloudflare, making sites inaccessible from the country. The throttling is so aggressive, reportedly only allowing users to download the first 16 KB of any web asset, that it effectively breaks most Cloudflare-backed sites for Russian netizens. Cloudflare […]
Cloudflare blocks record 7.3 Tbps DDoS attack against hosting provider
Cloudflare says it mitigated a record-breaking distributed denial of service (DDoS) attack in May 2025 that peaked at 7.3 Tbps, targeting a hosting provider. DDoS attacks flood targets with massive amounts of traffic with the sole aim to overwhelm servers and create service slowdowns, disruptions, or outages. This new attack, which is 12% larger than […]
Cloudflare: Outage not caused by security incident, data is safe
Cloudflare has confirmed that the massive service outage yesterday was not caused by a security incident and no data has been lost. The issue has been largely mitigated. It started 17:52 UTC yesterday when the Workers KV (Key-Value) system went completely offline, causing widespread service losses across multiple edge computing and AI services. Workers KV is a globally […]
Google Cloud and Cloudflare hit by widespread service outages
Update June 12, 17:41 EDT: In new updates, Cloudflare said that all services have been restored and are now fully operational, while Google stated it expects “recovery to complete in less than an hour.” Update June 12, 15:29 EDT: Cloudflare says its services were impacted by Google Cloud’s outage. “This is a Google Cloud outage. A limited number of […]