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ONE OF THE MOST disturbing things about Friday鈥檚 devastating global outage of IT systems is how routine such ruinous events have become.

In the last few years, from companies like Amazon.com, Inc. have temporarily shut down systems across the globe, and this latest issue comes as a result of a botched software update , whose link to mega customer Microsoft Corp. has led to worldwide problems 鈥 including , stock exchanges, , though .

This time the scale is unprecedented. That should spur Microsoft and other IT firms to do more than simply administer a band-aid. Policy makers could address the world鈥檚 over-reliance on just three cloud providers too. Today鈥檚 reality, where a single bug can harm millions of people at once, doesn鈥檛 have to be the status quo.

There鈥檚 a recommendation for you too, dear reader: Do something nice for your IT people today. Bring them donuts, coffee, or something stronger if it鈥檚 late enough, because they鈥檙e in for a rough weekend as resolving Friday鈥檚 shutdown a slow, complicated process. Network technicians and engineers have been scrambling to address the that has popped up on Windows computers around the world, effectively making them useless. It鈥檚 forced airlines to write their flight times on white boards and issue paper tickets; one TV news station in Britain was forced to go off the air.

The glitch is due to an update of CrowdStrike鈥檚 Falcon software, ironically designed to prevent harm from viruses and cyber threats and a 鈥渢iny, single, lightweight sensor.鈥 Falcon counts Microsoft as a key customer and crucially, has privileged access to one of the most fundamental cores of an operating system like Windows, known as the kernel.

In theory, this is a good idea. If CrowdStrike鈥檚 tool didn鈥檛 have this access, then any malicious hacker who got root access CrowdStrike鈥檚 anti-virus software and run rampant.

But it鈥檚 now obvious there鈥檚 a flip side to having that kind of privileged access, if CrowdStrike itself makes an error.

That鈥檚 why blame shouldn鈥檛 just fall on CrowdStrike (whose shares had fallen by more than 20% early Friday morning) but also on Microsoft for arguably not designing a more resilient operating system. Damningly, Apple, Inc. and Linux鈥檚 operating systems were not impacted by the glitch at all, according to a blog post from CrowdStrike on Friday. And to give Falcon such privileged access to their kernel, which now looks unwise. Microsoft didn鈥檛 respond to a request for comment.

This wasn鈥檛 a cyberattack, but, like previous outages, the result of the Byzantine complexity of cloud IT processes. The cybersecurity industry has done a stellar job in the last decade in marketing itself as a salvo to all manner of frightening threat actors, but one downside may be that companies have neglected basic IT hygiene as that infrastructure becomes more intricate. 鈥淥ver the last few years, most of our customers have ended up spending more on cybersecurity than on IT,鈥 Palo Alto Networks, Inc. Chief Executive Officer Nikesh Arora .

One technical solution might go back, naturally enough, to the age-old trick of 鈥渢urning it off and on again.鈥 Joao Alves, head of engineering at online marketplace Adevinta, that the tech industry will likely demand that cloud providers, 鈥渄ouble boot for OS and kernel-modules upgrades.鈥 In plain English, that means restart a system twice when updating software. The first boot applies the update, and the second makes sure the system is stable before fully activating the changes. Microsoft didn鈥檛 reply to questions at the time of writing about whether it has such processes in place.

But these are only piecemeal solutions. The bigger problem is the supply chain itself for cloud computing and, by extension, cybersecurity services, which has left too many companies and organizations vulnerable to a single point of failure. When just three companies 鈥 Microsoft, Amazon, and Alphabet, Inc.鈥檚 Google 鈥 dominate the market for cloud computing, one minor incident can have global ramifications.

European lawmakers are furthest ahead in addressing the market stranglehold that these so-called hyperscalers have with its new Data Act, which aims to lower the cost of switching between cloud providers and improve interoperability.

US lawmakers should get in the game too. One idea might be to force companies in critical sectors like healthcare, finance, transportation, and energy to use more than just one cloud provider for their core infrastructure, which tends to be the status quo. Instead, a new regulation could force them to use at least two independent providers for their core operations, or at least ensure that no single provider accounts for more than about two-thirds of their critical IT infrastructure. If one provider has a catastrophic failure, the other can keep things running.

As painful as Friday鈥檚 outage has been, it鈥檇 be a waste to not use it as a catalyst to stop what is fast becoming a recurring nightmare.

BLOOMBERG OPINION