If you had trouble turning on your computer on July 19, 2024, you’re not alone. Millions of computers around the world It became unusable due to this unexpected error.
But this event It’s not just a technical defect, A complex software bug has caused billions of dollars in economic losses and major operational disruptions worldwide.
On July 19, 2024, millions of Windows computers around the world suddenly stopped working.

Initially this situation was It was believed to be a cyber attack. However, it soon became clear that the problem was actually caused by an update from cybersecurity firm CrowdStrike.
CrowdStrike’s software called Falcon Nearly half of Fortune 500 companies installed on their computers. That is why airports, banks, hospitals and many companies were affected by this bug.
CrowdStrike Falcon software is security software that works at the kernel level of computers.

This software can detect and block malware before it infects. However, an error occurred during the update on July 19. Oops, computers Because it works at kernel level It resulted in machines not booting and constantly rebooting.
Update, a Invalid code in .sys file occurred as a result of. The file consisted almost entirely of zeros, causing errors when computers tried to access it.
The economic consequences of this event were quite significant.

Flights were cancelled at airports, banks could not provide service, Equipment needed for emergencies in hospitals did not work and many businesses had to stop operating. People missed their flights, had no access to their money and could not get medical care.
Miscalculated worldwide 8.5 million computers affected and each of these computers became unusable until they were manually repaired.
According to a report from Parametrix, a quarter of Fortune 500 companies were affected by these outages, and every company He lost $43.6 million.
The sectors hardest hit by these cuts include aviation, healthcare and banking is available. The health care sector in particular took the biggest hit, with losses of about $1.9 billion.
Airlines lost $860 million.

Parametrix, Total Insured Losses Among Fortune 500 Companies $540 million to $1.08 billion He estimates it’s between . Considering CrowdStrike works with 298 of the Fortune 500, the economic damage is staggering.
Sources: NationSquid, Axios, CNN Business
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