A single failure of a company's cloud machinery reached across the continents on a Thursday afternoon and kept reaching into a second day, reminding everyone how much of ordinary working life now rests on servers they will never see. Microsoft, which had seen its infrastructure strained beyond what the remaining machines could carry, was on Friday morning patiently restoring what it could in phases, and the easing numbers suggested the worst had passed even as the full cost remained unmeasured. In hospitals and government offices, where the stakes are not measured in unread email, the outage w
Microsoft Outage Enters Second Day as Outlook and Teams Recovery Continues Unevenly
Multiple hospital networks, including major medical centers across the U.S., were affected by the email and service disruption, and some government agencies were impacted.
A steep drop, though it still means thousands of people reporting trouble.
Mark
Why is this outage getting so much attention? Email goes down sometimes.
Mimi
Scale and reach. Reports came from 74 countries, and the list of affected places includes major hospitals like Cleveland Clinic and Mass General, plus federal agencies.
Luke
Careful with that. The hospital list comes from ABC News, and the agency point comes from an HHS alert as relayed by ABC. USA TODAY hadn't heard back from HHS. We don't know what actually broke at each hospital.
Mark
And the numbers? 130,000 reports sounds enormous.
Mimi
It was the Outlook peak on Thursday around 1 p.m. Eastern. By Friday morning it was down to about 6,950.
Luke
Those are Downdetector reports, not users. Microsoft hasn't given an affected-user count. The figure is a floor of people who bothered to report, not a measure of impact.
Mark
Does Microsoft say what went wrong?
Mimi
It said servers became unexpectedly unavailable, which put elevated load on what remained. Then a change meant to improve serviceability didn't work as expected.
Luke
That's a description of symptoms, not a root cause. Why the servers dropped out is still unexplained.
Mark
So is it over?
Mimi
Not quite. Microsoft says recovery is phased and capacity hasn't returned to baseline, with North America and Europe improving faster than Asia Pacific.
Luke
And the jokes about a snow day are real, but they're social media color. They don't tell us how much real work, or care, was held up.
Il Polso
- A Microsoft 365 outage that began Thursday afternoon has stretched into a second day, leaving Outlook, Teams and other services unreliable for users across dozens of countries.
- Outlook reports surged to 130,000 at their peak before falling to about 6,950 by Friday morning, a sharp drop that still leaves thousands stranded.
- Hospitals including Cleveland Clinic, Mass General and Mount Sinai were pulled into the disruption, and federal health officials issued an urgent alert about affected agencies.
- Microsoft is working through phased recovery across regions, with North America improving first and Europe and Asia Pacific following, yet it admits capacity has not returned to baseline.
- The company has not yet explained why servers became unexpectedly unavailable, and the outcome now depends on full restoration and a clear account of the root cause.
A single failure of a company's cloud machinery reached across the continents on a Thursday afternoon and kept reaching into a second day, reminding everyone how much of ordinary working life now rests on servers they will never see. Microsoft, which had seen its infrastructure strained beyond what the remaining machines could carry, was on Friday morning patiently restoring what it could in phases, and the easing numbers suggested the worst had passed even as the full cost remained unmeasured. In hospitals and government offices, where the stakes are not measured in unread email, the outage was felt as a quiet interruption to care and work, while elsewhere people found an unexpected pause in their routines. Whether the system returns to its former steadiness, and whether its makers can explain what broke, are questions that remain open.
By 5:28 a.m. Eastern on Friday, November 13, Microsoft was telling the world on X that recovery was "ongoing across affected Microsoft 365 infrastructure and progressing in phases." The outage that had begun the previous afternoon was now in its second day, and the company conceded that its capacity had not fully returned to normal.
The Downdetector figures show the outline of the disruption. Outlook complaints peaked at 130,000 around 1 p.m. Eastern on Thursday, with broader Microsoft 365 reports passing 47,000, coming from 74 countries and territories. By Friday morning the Outlook count had fallen to 6,950. That is a steep decline, yet thousands of people were still struggling, and the true number of those affected is almost certainly higher than what anyone has reported.
Microsoft described uneven progress: improvements in North America, steady gains across much of Europe, and encouraging signs in Asia Pacific, with lingering intermittent issues still possible. Earlier, it had blamed "elevated load across multiple regions" after servers became unexpectedly unavailable, and changes meant to restore service had not worked as planned.
The reach extended well past ordinary offices. Hospitals including Cleveland Clinic, Mass General, Mount Sinai and Ohio State's Wexner Medical Center were affected, and the Department of Health and Human Services issued an urgent alert about several government agencies. Online, some people treated the outage as an unexpected snow day, while others pointed to real harm to business and essential services.
What comes next is whether Microsoft declares capacity back to baseline and explains in detail why the servers failed. The story was still unfolding Friday morning.
By 5:28 a.m. Eastern on Friday, Nov. 13, Microsoft was posting on X that recovery actions were "ongoing across affected Microsoft 365 infrastructure and progressing in phases." The outage that began the previous afternoon had entered its second day, and the company acknowledged that its capacity had not yet fully returned to baseline.
The numbers on Downdetector tell the shape of it. Reports of Outlook problems peaked at 130,000 around 1 p.m. Eastern on Thursday, Nov. 12, while reports for Microsoft 365 more broadly exceeded 47,000. Downdetector said they came from 74 countries and territories. By about 7:11 a.m. Friday the Outlook count was around 11,747, and at 9:33 a.m. it stood at 6,950. That is a steep drop, though it still means thousands of people reporting trouble. Microsoft has not said how many users were affected, and the reported figures almost certainly understate the real number.
Microsoft's own updates describe uneven progress. At 8:32 a.m. it cited broader improvements in North America, sustained improvements across much of Europe, and encouraging recovery signals in Asia Pacific. At 8:40 a.m. it warned that users around the world might still have trouble reaching services and could see delayed email. On its website, the company said OneDrive, Teams, Outlook and Copilot were operational, but that some users might still be unable to get in or complete certain tasks. It reported improvements in key scenarios, including mailbox access and delayed email processing, while cautioning that some intermittent issues may continue.
As for the cause, Microsoft said on Thursday that the service had suffered "elevated load across multiple regions" after servers became "unexpectedly unavailable," which strained the infrastructure that remained. In a status update shortly after 10:30 p.m. Thursday, it said changes made to improve serviceability had not taken effect as expected. It added that it was identifying alternate workstreams to increase capacity amid sustained traffic management imbalances. The company's status page showed no issues with Azure. The affected services were listed as Microsoft 365 products, among them Outlook, Teams, Copilot, Lists, Phone Link, OneDrive, Office for the web, Whiteboard and To-Do. Xbox's status page showed all services running, although Vice reported that players had trouble with services such as Xbox Live.
The disruption reached well beyond ordinary offices. ABC News reported that a long list of hospitals and health systems were affected: Cleveland Clinic; Cincinnati Children's; Kaleida Health and Cayuga in Buffalo, New York; Harris Health System in Texas; Hospital for Special Surgery in New York City; Martha's Vineyard Hospital; Massachusetts General Hospital; Memorial Hermann in Texas; Mount Sinai in New York; Nationwide Children's Hospital in Ohio; and Ohio State University Wexner Medical Center. ABC also reported that the Department of Health and Human Services issued an urgent alert saying several government agencies were affected. USA TODAY asked the department for more information and had not received an immediate response.
Online, the mood was lighter. Some people called the outage a "snow day" for adults, freed from their inboxes. Italian ice cream brand Cornetto posted an Instagram video of someone opening ice cream packs at scenic spots, captioned "This and a Microsoft outage." A user, @nicolasatm, posted a clip of the warning icon over the Outlook app, writing that on Nov. 12 "all of corporate America fell." Creator Noela Jerome complained that Microsoft had "forgotten to switch off Teams." Others, though, said the outage was hurting important services and business.
What to watch now is whether Microsoft announces that capacity is back to baseline, and whether it explains in more detail why the servers became unavailable. The story was still developing Friday morning, and USA TODAY had reached out to Microsoft for comment.
Citazioni salienti
Recovery actions are ongoing across affected Microsoft 365 infrastructure and progressing in phases.— Microsoft, post on X, Nov. 13
Capacity has not yet fully returned to baseline.— Microsoft, status update
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