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Cloudflare incident on September 17, 2024

2024-09-20

OutageIPv4CDN

On September 17, 2024, during planned routine maintenance, Cloudflare stopped announcing 15 IPv4 prefixes, affecting some Business plan websites for approximately one hour. During this time, IPv4 traffic for these customers would not have reached Cloudflare and users attempting to connect to websites using addresses within those prefixes would have received errors. ...

How Cloudflare is helping domain owners with the upcoming Entrust CA distrust by Chrome and Mozilla

2024-09-19

SSLSaaSCertificate AuthorityAdvanced Certificate ManagerApplication ServicesApplication Security

Chrome and Mozilla will stop trusting Entrust’s public TLS certificates issued after November 2024 due to concerns about Entrust’s compliance with security standards. In response, Entrust is partnering with SSL.com to continue providing trusted certificates. Cloudflare will support SSL.com as a CA, simplifying certificate management for customers using Entrust by automating issuance and renewals....

Protecting APIs from abuse using sequence learning and variable order Markov chains

2024-09-12

AIAPI ShieldAPI GatewayAPI Security

At Cloudflare, we protect customer APIs from abuse. This is no easy task, as abusive traffic can take different forms, from giant DDoS attacks to low-and-slow credential stuffing campaigns. We now address this challenge in a new way: by looking outside typical volumetric measures and using statistical machine learning to find important API client request sequences....