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CrowdStrike: how a security update crippled the tech world

Global impact of a security update on banking, transportation and cloud services: what happened and how the crisis is being addressed

An update to CrowdStrike's cybersecurity software has caused global IT outages, affecting banks, media, transportation and Microsoft Azure services. This has led to blue screens on many Windows devices. CrowdStrike and Microsoft are working to resolve the issue.

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A recent cybersecurity software update caused large-scale IT disruptions, shutting down banks, media and transportation in several parts of the world. In the United States, all airlines had to suspend flights, while in other countries such as Spain and Australia, Sydney and Berlin airports remained inactive. The UK's rail system also suffered disruption. At the root of these issues is an update to CrowdStrike's Falcon Sensor software, which had a significant impact on Microsoft platforms, causing disruptions in Azure cloud services and application management.

The role of Falcon Sensor and CrowdStrike's response

Falcon Sensor is a key component of CrowdStrike's cybersecurity suite, designed to prevent cyber attacks. However, a recent update led to a widespread crash of Windows devices, causing the infamous "Blue Screen of Death" (BSOD). This blue screen occurs when computers start up, putting them in a constant reboot loop with no way to recover. CrowdStrike promptly acknowledged the issue and said it had isolated and identified the cause, pledging to resolve the situation with a new update already being released.

Impacts on Microsoft services and mitigation measures

The problematic Falcon Sensor update had significant impacts on Microsoft Azure cloud services, a crucial platform for many businesses around the world. Users have reported spikes in incidents across numerous Microsoft-related websites and applications. In response, Microsoft said it has taken "mitigation actions" to reduce the impact and restore functionality to the services. The company is working intensively to resolve the problems and ensure the operational continuity of the affected technological infrastructures.

Restoration of services and future prospects

Thousands of Windows computers were affected by the BSOD, creating worldwide computing chaos. Experts, including those contacted by the BBC, agree that the cause lies in the recent CrowdStrike update. The US tech giant confirmed that its cloud services had largely been restored following the outage. Although the timing for a complete return to normality is not yet clear, affected companies are implementing temporary solutions while awaiting the final release of corrective updates. This story highlights the importance of carefully managing software updates in the context of global cybersecurity.

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07/19/2024 10:28

Marco Verro

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