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Why is the internet down? What to know about the global Microsoft outage linked to CrowdStrike

An unprecedented global IT outage caused worldwide chaos Friday morning, leaving passengers stranded at airports, TV nļæ½ļæ½etworks unable to broadcast and banks unable to serve their custošŸŽ‰mers.

Major cybā™ˆersecurity provider CrowdStrike issued a faulty software update that slammed users of Microsoftā€™s Windows operating system, many of whź¦om were greeted with crashing computers and the so-called ā€œblue screen of deathā€ as they were left unable to restart.

ā€œWeā€™re aware of an issue with Windows 365 CloušŸŒd PCs caused by a recent update to CrowdStrike ā–ØFalcon Sensor software,ā€ Microsoft said on its .

Microsoft waršŸ‰ned the bug could cause computers to ā€œget stuck inšŸ’› a restarting state.ā€

Many customers were greeted with the dreaded “blue screen of death.” AP

In an appearance on NBCā€™s ā€œTodayā€ show, Kurtz said CrowdStrike was ā€œdeeą²Œply sorryā€ for the oą²Œutage.

Computers from the US to Europe, China and beyond were impacted ź¦æby what is already considered one of the largest IT outages in history.

ā€œThis is basically what we were all worried about with Y2K, except it’s actually happened this time,ā€ prominent cybersecurity .

What happened? What caused the outage?

CrowdStrike CEO George Kurtz sź§…aidš’ the outage was the result of a flubbed software update and that a fix had been deployed. Separately, Microsoft blamed the outage on a ā€œthird-party software providerā€ and said it was being addressed.

ā€œCrowdStrike is actively working with customers impacā™ted by a defect found in a single content update for Windows hosts,ā€ Kurtz said in a lengthy X post. ā€œMac and Linux hosts are not impacted.ā€

Microsoft and CrowdStrike each said a fix was underway. Getty Images

ā€œź¦šThe issue has been identified, isolated and a fix has been deployed ā€¦ Our team is fully mobilized to ensure the security anš“†‰d stability of CrowdStrike customers,ā€ Kurtz added.

CrowdStrike has yet to provide many specifics. CrowdStrike reporź¦œtedly warned customers that the issue was related to Falcon, a service that scans company devices for hacking attempts and other cybersecurity threats.

According to the Wall Street Journal, the Austin-based company told customers in a status update that the problem was with a softwarš“ƒ²e change it had pushešŸŽd via Falcon out to clientsā€™ computers.

The company said its engineers had undonā™Še the change but cliź¦œents would need to use a workaround to download a fix to affected computers.

Was the outage caused by hackers or a cyberattack?

ā™•CrowdStrike said the outage is ā€œnot a security incident or cyberattack.ā€ InsteašŸ™ˆd, it resulted from a bug in a software change it pushed to clients.

Whatā€™s next for the public?

Both CrowdStrikā™Še and Microsoft have signaled a fix is already underway, though itā€™s unclear when full service will be restored across the various industries affected by the glitch.

Kurtz couldnā€™t give a timeline fšŸ¦©or when all systems would be back up and running again.

ā€œAs you might imagine, weā€™ve been on with šŸ—¹our customers all night,ā€ he said. ā€œMany of the customers are rebooting the system and itā€™s coming up operational because we fixed it on our end.ā€

ā€œIt ā–Øcould be some time,ā€ he added. ā€œSometimes, some systems šŸ’§wonā€™t automatically recover ā€¦ weā€™re not going to relent until we get every customer back to where they were.ā€

CrowdStrike CEO George Kurtz apologized for the outage on the “Today” show. NBC / TODAY

According to the Journal, some affected users may be back up and running soon, but for others, it could take weeksšŸ¬, depending on the system in use, said Simo Kohonen, founder of Finland-based network securź¦ity company Defused.

ā€œThe fix CrowdStrike has given is quite manual and may be difficult, in some cases, to deploy at large scale,ā€ he ź§Ÿtold the paper.

In an interview with CNBC on Friday, CrowdStrike CEO Kurtz said the company was looking for ways to automate the fix, suggesting customers are stuck with manual fixes šŸ¤Ŗfor now.

That means affected entities — from banks to stock exchanges to seaports — might take days to fully recover, Alan Woodward, a professor of cybersecurity at the University of Surrey, told Bloomberg News.

ā€œYouā€™ll have mź§™en in white vans going around to try manually fix this problem even when they put out a fix,ā€ Woodward told theš’ˆ” outlet. ā€œThat is a big job.ā€

Planes and trains halted around the world

US airports were jam-packed with stranded passengers as the software glitch ā™‰caused flight cancellations and delays. American Airlines, Delta Airlines and United Airlines were among those that grounded flights. Europeā€™s Ryanair said it was experiencing issues ā€œdue to a global 3rd party system outage.ā€

The MTAĀ Ā that its customer IT systems wereš† ā€œtemporarily offlineā€ due to the technicašŸ’§l outage, but train and bus services were still running.

As of 8 a.m. Friday, nearly 2,700 flights had been canceled, including more than 1,000šŸŒ³ flights in the US alone, the Journal reported, citing data from Cirium, aš’ˆ”n aviation analytics company. More than 21,000 flights around the world were delayed by midmorning Friday, the paper reported, citing flight-tracking website FlightAware.

Many airlines were forced to cancel or delay flights. AP
A software glitch caused global chaos on Friday. REUTERS

Banks halt service

Banks and other financial services firms in Germany, Australia, India and various other countries warned customers of service outages, while traders were reportedly left unable to executešŸŽ€ transactions.

BanšŸƒk of America, Visa, TD Bank, Wells Fargo and many other banks were having issues as of Friday morning, .

TV networks down

UK-based Sky News was left unable to broadcast morning coverź¦›age and said it was ā€œworkšŸ’ƒing hard to restore all services.ā€ News outlets in Australia also experienced issues with going live.

With Post wires