Cloudflare incident on January 24, 2023
January 25, 2023 3:47AM
Several Cloudflare services became unavailable for 121 minutes on January 24th, 2023 due to an error releasing code that manages service tokens. The incident degraded a wide range of Cloudflare products...
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Partial Cloudflare outage on October 25, 2022
October 26, 2022 4:02AM
Today, a change to our Tiered Cache system caused some requests to fail for users with status code 530...
The mechanics of a sophisticated phishing scam and how we stopped it
August 09, 2022 4:56PM
Yesterday, August 8, 2022, Twilio shared that they’d been compromised by a targeted phishing attack. Around the same time as Twilio was attacked, we saw an attack with very similar characteristics also targeting Cloudflare’s employees...
Cloudflare outage on June 21, 2022
June 21, 2022 1:38PM
Today, June 21, 2022, Cloudflare suffered an outage that affected traffic in 19 of our data centers...
PIPEFAIL: How a missing shell option slowed Cloudflare down
April 05, 2022 1:57PM
Speed & Reliability
This post tells the story of how a missing shell option called “pipefail” slowed Cloudflare down....
March 22, 2022 4:57PM
Cloudflare’s investigation of the January 2022 Okta compromise
Today at 03:30 UTC we learnt of a compromise of Okta. We use Okta internally for employee identity as part of our authentication stack. We have investigated this compromise carefully and do not believe we have been compromised as a result...