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 […]
Cloudflare mitigates record number of DDoS attacks in 2025
Internet services giant Cloudflare says it mitigated a record number of DDoS attacks in 2024, recording a massive 358% year-over-year jump and a 198% quarter-over-quarter increase. These figures come from Cloudflare’s 2025 Q1 DDoS Report, where the company says it mitigated a total of 21.3 million DDoS attacks in 2024. However, 2025 is looking to be […]
Cloudflare R2 service outage caused by password rotation error
Cloudflare announced that its R2 object storage and dependent services experienced an outage lasting 1 hour and 7 minutes, causing 100% write and 35% read failures globally. Cloudflare R2 is a scalable, S3-compatible object storage service with free data retrieval, multi-region replication, and tight Cloudflare integration. The incident, which lasted between 21:38 UTC and 22:45 […]
Cloudflare now blocks all unencrypted traffic to its API endpoints
Cloudflare announced that it closed all HTTP connections and it is now accepting only secure, HTTPS connections for api.cloudflare.com. The move prevents unencrypted API requests from being sent, even accidentally, to eliminate the risk of sensitive information being exposed in cleartext traffic before the server closes the HTTP conection and redirects to a secure communication channel. […]
X hit by ‘massive cyberattack’ amid Dark Storm’s DDoS claims
The Dark Storm hacktivist group claims to be behind DDoS attacks causing multiple X worldwide outages on Monday, leading the company to enable DDoS protections from Cloudflare. While X owner Elon Musk did not specifically state that DDoS attacks were behind the outages, he did confirm that it was caused by a “massive cyberattack.”. “There […]
Cloudflare outage caused by botched blocking of phishing URL
An attempt to block a phishing URL in Cloudflare’s R2 object storage platform backfired yesterday, triggering a widespread outage that brought down multiple services for nearly an hour. Cloudflare R2 is an object storage service similar to Amazon S3, designed for scalable, durable, and low-cost data storage. It offers cost-free data retrievals, S3 compatibility, data […]
Cloudflare CDN flaw leaks user location data, even through secure chat apps
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. While the geo-locating capability of the attack is not precise enough for street-level tracking, it can provide enough data to infer what geographic region a […]
Cloudflare mitigated a record-breaking 5.6 Tbps DDoS attack
The largest distributed denial-of-service (DDoS) attack to date peaked at 5.6 terabits per second and came from a Mirai-based botnet with 13,000 compromised devices. The UDP-based attack occurred last year on October 29 and targeted an internet service provider (ISP) in Eastern Asia in an attempt to bring its services offline. Security and connectivity services provider […]