Writing
Tagged “crowdstrike”
5 articles
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Postmortem: The CrowdStrike Outage of July 2024
CrowdStrike's full root cause analysis is out. The sensor expected 20 inputs, the new content supplied 21, and every test that should have caught it used a wildcard in exactly the wrong place. A month on, here's the…
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CrowdStrike Post-Mortem
Nine days after the outage, CrowdStrike has published a preliminary review. A test that should have caught the bad update passed because the test itself had a bug, and the content went to every machine at once. What the…
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CrowdStrike’s History of Releasing Software That Breaks Operating Systems
Friday's Windows outage wasn't the first time this year a CrowdStrike update took down machines. Linux administrators running Debian and RHEL had already been through it, months earlier and with far less attention. What…
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Open Source Alternatives to Crowdstrike: Ensuring Resilience Against Global Outages
After today's outage, a lot of people are asking whether open source security tools could replace CrowdStrike. Some can do parts of the job, and some do them very well. None of them is a drop-in replacement, and open…
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Understanding the Causes of Widespread Outages: The Cases of CrowdStrike and Microsoft
Written the day it happened. A faulty CrowdStrike update crashed Windows machines worldwide, grounding flights and taking hospitals and banks offline, the morning after a separate Azure outage. It wasn't an attack. Why…