cloudflare
Aisuru botnet sets new record with 31.4 Tbps DDoS attack
The Aisuru/Kimwolf botnet launched a new massive distributed denial of service (DDoS) attack that peaked at 31.4 Tbps and 200 million requests per second, setting a new record. The attack was part of a campaign targeting multiple companies, most of them in the telecommunications sector, and was detected and mitigated by Cloudflare last year on December 19. […]
Cloudflare misconfiguration behind recent BGP route leak
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. The BGP system helps route data across different networks called autonomous systems (AS) that send it to destination through smaller networks on the internet. The incident was […]
Cloudflare blames today’s outage on React2Shell mitigations
Earlier today, Cloudflare experienced a widespread outage that caused websites and online platforms worldwide to go down, returning a “500 Internal Server Error” message. The internet infrastructure company has now blamed the incident on the rollout of emergency mitigations designed to address a critical remote code execution vulnerability in React Server Components, which is now actively exploited […]
Cloudflare down, websites offline with 500 Internal Server Error
Cloudflare is down, as websites are crashing with a 500 Internal Server Error. Cloudflare has confirmed that it’s investigating the reports. Cloudflare, a service that many websites use to stay fast and secure, is currently facing problems. Because of this, people visiting some websites are seeing a “500 Internal Server Error” message instead of the […]
Cloudflare blames this week’s massive outage on database issues
On Tuesday, Cloudflare experienced its worst outage in 6 years, blocking access to many websites and online platforms for almost 6 hours after a change to database access controls triggered a cascading failure across its Global Network. The company’s Global Network is a distributed infrastructure of servers and data centers across more than 120 countries, […]
Cloudflare hit by outage affecting global network services
Cloudflare is investigating an outage affecting its global network services, with users encountering “internal server error” messages when attempting to access affected websites and online platforms. Cloudflare’s Global Network is a distributed infrastructure of servers and data centers located in over 330 cities across more than 120 countries, delivering content delivery, security, and performance optimization services. […]
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 […]