 "In Graphics | What we know about Microsoft IT outage")
On Friday, the world witnessed chaos.
Banks, railways, airlines, TV networks, and health firms went down all across the world.
At the heart of the outage was CrowdStrike — a Texas-based cybersecurity firm that specialises in blocking and analysing attacks that comes integrated with Microsoft Windows.
The company said its “Falcon Sensor” software was causing Microsoft Windows to crash and display a blue screen — known informally as the “Blue Screen of Death.”
“Thanks for contacting Crowdstrike support. Crowdstrike is aware of reports of crashes on Windows … related to the Falcon sensor,” a prerecorded message from the company stated.
Crowdstrike said that it was “actively working with customers impacted by a defect found in a single content update for Windows hosts" — adding that a fix “had been deployed” for the identified issue.
Microsoft 365 posted on social media platform X that the company was “working on rerouting the impacted traffic to alternate systems to alleviate impact” and that they were “observing a positive trend in service availability.”
But what happened?
Let’s take a closer look:
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