A significant global tech outage was caused by a flaw in an update to CrowdStrike's "Falcon Sensor" software, resulting in Windows PCs crashing worldwide. This incident led to various industries experiencing disruptions as systems displayed the "Blue Screen of Death," rendering computers inoperable.

Affected Industries are:

Airports and Airlines
Airports and airlines were severely impacted, leading to flight delays, cancellations, manual check-ins, and even halted flights. In India, airlines such as SpiceJet, IndiGo, Akasa Air, Vistara, Air India, and Air India Express experienced significant issues. The outage affected high-density airports like Delhi, Mumbai, Bengaluru, and Chennai, causing passengers to argue with airline staff over delays and cancellations. 

In Hyderabad, 23 flights were canceled, including IndiGo flights to Visakhapatnam, Tirupati, Ahmedabad, and Bengaluru. Airports in Berlin, Lisbon, Amsterdam, Brussels, and Budapest were also affected. Major US carriers such as American Airlines, Delta Air Lines, and United Airlines temporarily halted flights, while Australia's Qantas faced delays. Around 90% of flights at London's Gatwick and Stansted Airports were delayed or canceled, and Irish carrier Ryanair canceled a small number of flights.

Financial Institutions
The finance sector was not spared, with JP Morgan Chase & Co, Macquarie Capital, Barclays, and Brazilian lender Bradesco all affected. Australia's Commonwealth Bank faced issues with instant fund transfers, while South African finance giants Capitec Bank and Absa experienced disruptions. In Germany, Allianz employees were unable to log into their systems, and several banks reported issues. The London Stock Exchange Group's Workspace news and data platform also suffered, and some brokerages in India faced technical difficulties.

Media
Broadcasting was disrupted for Britain's Sky News, which operated at minimal capacity for hours. Australia's state broadcaster ABC experienced a major network outage, and regular programming at Sky News Australia was affected.

Healthcare and Emergency Services:
Healthcare services in England, the Netherlands, Germany, and other countries were disrupted. However, emergency services in England were reportedly unaffected. Copenhagen's fire department in Denmark had issues accessing automatically transmitted fire alarms, urging people to call the emergency number in case of fire. Australia's Victoria state police faced internal system issues, but emergency services continued to run normally.

US-based non-profit hospital chain Mass General Brigham canceled non-urgent surgeries, procedures, and medical visits for the day. Quest Diagnostics' patient services and customer contact teams worked in a limited capacity, and Labcorp's physician and patient portals were impacted.

This widespread outage highlights the vulnerabilities in global IT infrastructure and the far-reaching consequences of a single software flaw.

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