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URL: https://blogs.microsoft.com/blog/2024/07/20/helping-our-customers-through-the-crowdstrike-outage/
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HELPING OUR CUSTOMERS THROUGH THE CROWDSTRIKE OUTAGE

Jul 20, 2024 | David Weston - Vice President, Enterprise and OS Security

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On July 18, CrowdStrike, an independent cybersecurity company, released a
software update that began impacting IT systems globally. Although this was not
a Microsoft incident, given it impacts our ecosystem, we want to provide an
update on the steps we’ve taken with CrowdStrike and others to remediate and
support our customers. 

Since this event began, we’ve maintained ongoing communication with our
customers, CrowdStrike and external developers to collect information and
expedite solutions. We recognize the disruption this problem has caused for
businesses and in the daily routines of many individuals. Our focus is providing
customers with technical guidance and support to safely bring disrupted systems
back online. Steps taken have included: 

 * Engaging with CrowdStrike to automate their work on developing a
   solution. CrowdStrike has recommended a workaround to address this issue and
   has also issued a public statement. Instructions to remedy the situation on
   Windows endpoints were posted on the Windows Message Center.  

 * Deploying hundreds of Microsoft engineers and experts to work directly with
   customers to restore services.  

 * Collaborating with other cloud providers and stakeholders, including Google
   Cloud Platform (GCP) and Amazon Web Services (AWS), to share awareness on the
   state of impact we are each seeing across the industry and inform ongoing
   conversations with CrowdStrike and customers. 

 * Quickly posting manual remediation documentation and scripts found here.

 * Keeping customers informed of the latest status on the incident through the
   Azure Status Dashboard here. 

We’re working around the clock and providing ongoing updates and support.
Additionally, CrowdStrike has helped us develop a scalable solution that will
help Microsoft’s Azure infrastructure accelerate a fix for CrowdStrike’s faulty
update. We have also worked with both AWS and GCP to collaborate on the most
effective approaches.   

While software updates may occasionally cause disturbances, significant
incidents like the CrowdStrike event are infrequent. We currently estimate that
CrowdStrike’s update affected 8.5 million Windows devices, or less than one
percent of all Windows machines. While the percentage was small, the broad
economic and societal impacts reflect the use of CrowdStrike by enterprises that
run many critical services. 

This incident demonstrates the interconnected nature of our broad ecosystem —
global cloud providers, software platforms, security vendors and other software
vendors, and customers. It’s also a reminder of how important it is for all of
us across the tech ecosystem to prioritize operating with safe deployment and
disaster recovery using the mechanisms that exist. As we’ve seen over the last
two days, we learn, recover and move forward most effectively when we
collaborate and work together. We appreciate the cooperation and collaboration
of our entire sector, and we will continue to update with learnings and next
steps. 



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