Cloudflare Explains Major Service Outage: Not a Security Breach, No Data Lost

Cloudflare has clarified that a widespread outage affecting its global services was not the result of a cyberattack or data breach. The company confirmed that no customer data was compromised during the disruption, which significantly impacted numerous platforms, including major edge computing services and some Google Cloud infrastructure. 

The issue began at approximately 17:52 UTC and was primarily caused by a complete failure of Workers KV, Cloudflare’s globally distributed key-value storage system. As a backbone for its serverless computing platform, Workers KV plays a crucial role in supporting configuration, identity management, and content delivery across many of Cloudflare’s offerings. When it went offline, critical functions across the ecosystem were immediately affected. 

In a post-incident analysis, Cloudflare revealed that the root cause was a malfunction in the storage infrastructure that underpins Workers KV. This backend is partially hosted by a third-party cloud service, which experienced its own outage—directly leading to the failure of the KV system. The ripple effects were far-reaching, disrupting Cloudflare services for nearly two and a half hours. 

Key services impacted included authentication platforms like Access and Gateway, which saw major breakdowns in login systems, session handling, and policy enforcement. Cloudflare’s WARP service was unable to register new devices, while Gate

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