Resolved · Infrastructure · Jul 19, 2024 · Impact ●●●●● 5/5
Faulty CrowdStrike update crashes millions of Windows machines worldwide
A defective Falcon sensor configuration update bluescreened roughly 8.5 million Windows devices; CrowdStrike shipped a fix within hours, but airlines, hospitals, banks and broadcasters spent days recovering.
On 19 July 2024, cybersecurity firm CrowdStrike pushed a faulty configuration update that sent Windows machines running its Falcon sensor into boot loops. Airports, hospitals and financial institutions ground to a halt in what was widely called one of the largest IT outages in history. A fix went out the same day, but many affected machines needed manual recovery.
CrowdStrike's preliminary post-incident review attributed the crash to a bug in its content validator that let a defective Rapid Response Content update reach production.
crowdstrike.comPrimaryen.wikipedia.org/wiki/2024_CrowdStrike-related_IT_outages — Wikipedia
Primarycrowdstrike.com/falcon-content-update-remediation-and-guidance-hub — CrowdStrike