On July 19, 2024, cybersecurity company CrowdStrike released an update to its Falcon
Sensor software that caused massive disruptions to computers running the Microsoft
Windows operating system. As a result, about 8.5 million systems went down, causing
significant disruption to businesses and government agencies around the world.
The main consequences of the failure:

• Aviation and transportation: Airports experienced significant disruption, leading to flight
  cancellations and delays.
• Financial sector: Banks and ATMs were out of service, limiting customers’ access to
  financial services.
• Healthcare: Hospitals and medical institutions faced interruptions in the operation of
  electronic systems, which complicated the provision of medical services.
• Industry: Manufacturing companies stopped working due to the failure of computer
  systems.
  Although CrowdStrike quickly identified the problem and released a patch, many systems
  required manual intervention to recover, which extended downtime. The total financial loss
  from the incident is estimated to be at least USD 10 billion.
  The incident highlighted the importance of thoroughly testing software updates and the
  need for robust crisis response plans.