July 19th, 2024

Microsoft/Crowdstrike outage ground planes, banks and the London Stock Exchange

A cybersecurity program update failure caused global disruptions affecting businesses and services like United Airlines, McDonald’s, and the London Stock Exchange. Microsoft and CrowdStrike faced issues, but the problem was resolved without a cyberattack. CrowdStrike's shares dropped 20%, and Microsoft's fell 2.9%. The incident, involving Windows and security software, is one of the largest IT outages, surpassing past disruptions.

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Microsoft/Crowdstrike outage ground planes, banks and the London Stock Exchange

A botched update of a cybersecurity program led to major disruptions at businesses and public services globally, grounding planes, impacting banks, McDonald’s stores, and the London Stock Exchange. Microsoft and CrowdStrike were affected, with CrowdStrike CEO confirming the issue was identified and fixed, not a cyberattack. The disruptions highlighted the vulnerabilities in the modern economy and the critical role of security software. Companies like United Airlines, McDonald’s, and the LSE reported issues, affecting various sectors. CrowdStrike's shares fell 20%, and Microsoft's dropped 2.9% due to the outages. This incident, involving Microsoft's Windows and CrowdStrike's security software, is considered one of the largest IT outages in history, surpassing past disruptions like those at Amazon and Fastly. The disruptions began in the US and spread to Asia and Europe, impacting systems worldwide. Despite the widespread disruptions, services like Bloomberg terminals continued to operate normally.

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