Cloudflare revealed the main cause behind the global disruption that occurred on Friday, December 5, 2025, which caused 28 percent of its services to fall or fall.

This incident is Cloudflare's second time down and makes internet users in the world restless. Earlier on November 18, 2025, Cloudflare also experienced disruptions that caused services such as Canva, Zoom, and other errors.

In its official report, the disturbance began to occur around 15.47 WIB last Friday, due to configuration changes intended to improve security, which actually led to an old bug in one of Cloudflare's proxy components.

As a result, many customer requests around the world went wrong and caused about 28 percent of its services to go down. However, they confirmed that this incident was not due to cyber attacks at all.

"This is purely our internal failure when trying to protect customers from large vulnerabilities," Cloudflare said in a statement.

Achieving about 30 minutes later, at 16.12 WIB, Cloudflare admitted that it had succeeded in overturning changes that caused problems, and services returned to normal.

The incident also further highlighted the need for reform of Cloudflare's development system, just two weeks after major disruptions on November 18, 2025.

Cloudflare admits that it is accelerating the project to increase system resilience, starting from a more secure rollout, emergency override capabilities, to a fail-open' mechanism so that requests continue to flow even though configurations are problematic.

"A series of disturbances like this is unacceptable," Cloudflare wrote while apologizing to customers and internet users around the world.


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