On a Thursday afternoon in mid-November, Microsoft noticed that its Microsoft 365 services were failing, and by the next day the failure had rolled across time zones from Asia to the United States. It touched offices, classrooms, factories and governments alike, reminding the world how much of ordinary working life now rests on a few shared digital pipes. Microsoft insists the cause was an internal technical fault rather than an attack, and that the root problem has been fixed, though the full return to normal is still unfolding and its explanation has yet to be written down in detail.
Microsoft Outage Enters Second Day, Disrupting Outlook and Teams Worldwide as Recovery Continues
No ETA for full recovery yet, as the outage entered its second day
Mark
Why is this one drawing so much attention? Email outages happen.
Mimi
The scale. More than 70 countries and territories showed disruptions on Downdetector, and governments in Singapore, Japan, the Philippines and Australia all weighed in.
Mark
And Microsoft says it wasn't an attack?
Mimi
Yes, a technical issue, not malicious or cyber activity. Australia's Tony Burke relayed that Microsoft likened it to CrowdStrike, an update gone awry.
Luke
Worth separating what's confirmed. Microsoft says the cause isn't cyber and the underlying issue is resolved. The CrowdStrike comparison reached us through Burke, not a detailed Microsoft explanation.
Mark
So we don't know the actual cause yet?
Luke
Not publicly. Lamanna promised a post-mortem with a timeline, but it isn't out. Until then, "technical issue" is all we have.
Mimi
He also said the recovery was harder than normal because of technical challenges and failure modes.
Mark
How many people were hit?
Luke
Unknown. Downdetector counted over 130,000 reports Thursday, but that's user reports, not a headcount. The 430 million figure is total Microsoft 365 users, not affected users.
Mimi
The AI angle is interesting too. OpenAI and Anthropic both had trouble connecting to Microsoft 365 tools.
Mark
What's the open question?
Luke
Timing. Microsoft reported improvement in several regions but gave no ETA for full recovery.
El Pulso
- A Thursday afternoon fault in Microsoft 365 stretched into a second day, leaving Outlook, Teams and Copilot stalled for people from Asia to North America.
- More than 130,000 reports on Thursday alone flooded in from over 70 countries, and email silence sent workers scrambling for other ways to reach each other.
- Microsoft says it found the underlying problem, rules out a cyberattack, and is restoring service region by region while warning that email delays may linger.
- Recovery is uneven: North America and Europe are improving, Asia-Pacific shows early signs, and no date has been set for full normal service.
- Governments in Singapore, Japan, the Philippines and Australia are watching closely, and a promised post-mortem will decide whether the CrowdStrike comparison holds.
On a Thursday afternoon in mid-November, Microsoft noticed that its Microsoft 365 services were failing, and by the next day the failure had rolled across time zones from Asia to the United States. It touched offices, classrooms, factories and governments alike, reminding the world how much of ordinary working life now rests on a few shared digital pipes. Microsoft insists the cause was an internal technical fault rather than an attack, and that the root problem has been fixed, though the full return to normal is still unfolding and its explanation has yet to be written down in detail.
Just before 1 p.m. Eastern on Thursday, Microsoft flagged trouble with its Microsoft 365 services. By Friday the problem had run into a second day, reaching from Asia to the United States and touching businesses, government offices and ordinary people who just wanted their email.
The outage struck a broad set of products tied to Exchange Online and email, leaving Outlook, Teams and the AI assistant Copilot down for both business customers and individual users. Downdetector recorded disruptions in more than 70 countries, and over 130,000 people reported problems on Thursday alone, though reports began tapering Friday morning. The true number affected is unclear, given that Microsoft says more than 430 million people use its 365 apps.
Microsoft described the cause as a technical issue, not malicious or cyber activity, and said on Friday that it had resolved the underlying problem. Recovery has been uneven: North America and much of Europe improved, Asia-Pacific showed encouraging signs, and intermittent access and delayed email may persist. The company apologized, and executive Charles Lamanna said engineers were preparing a detailed post-mortem with a timeline and repair steps. Analysts called it a rough day for the company.
The effects were personal. A Los Angeles woman found reports and approvals stuck, while some social media users celebrated a break from email. In Hong Kong, aluminum executive Danny Lau worried a prolonged outage could disrupt his production schedule. OpenAI and Anthropic reported connection trouble, and Workhorse Group delayed an earnings call. Air India rerouted its email to keep customer queries flowing, and IndiGo's support email was disrupted while flights ran normally.
Governments took notice too. Singapore said its government email was down and it was working with Microsoft, the Philippines' Supreme Court reported disrupted operations, and Japan and Australia said officials were monitoring closely. Australia's Home Affairs Minister said Microsoft did not believe it faced an attack, but something resembling the 2024 CrowdStrike incident, when a faulty update grounded flights and disrupted banks and hospitals worldwide. Whether that comparison holds, and when full recovery arrives, will become clearer once Microsoft publishes its post-mortem.
Just before 1 p.m. Eastern on Thursday, Microsoft flagged technical trouble with its Microsoft 365 services. By Friday the problem had stretched into a second day, reaching from Asia to the United States and touching businesses, government offices and ordinary users who simply wanted their email.
The outage hit a wide range of Microsoft 365 products tied to Exchange Online and email. Users reported that Outlook, Teams and the company's AI assistant Copilot were down. Both the business products and the versions for individuals, students and families were affected. Downdetector, which tracks tech outages, recorded disruptions in more than 70 countries and territories, and more than 130,000 users reported problems on Thursday alone. Those reports began to fall off Friday morning. How many people were truly affected remains unclear; Microsoft's website says more than 430 million people use its 365 apps.
Microsoft said the cause was a technical issue, not malicious or cyber activity. In a Friday morning update, the Redmond, Washington, company said it had resolved the underlying problem and was restoring service. It reported "encouraging recovery progress," particularly in email delivery, along with broader improvements in North America, sustained improvements across much of Europe, and encouraging signs in the Asia-Pacific region. Users could still run into intermittent access problems or delayed email, it cautioned. By Friday afternoon it said it had no ETA for full recovery.
The company apologized on X, saying it was deeply sorry and understood the trust customers and partners place in its services. Charles Lamanna, an executive vice president at Microsoft overseeing Copilot, Agents and Platform, said in a social media post that "technical challenges and failure modes" had made recovery harder than normal. He said he was working with engineers on a full post-mortem, to be published shortly, with a step-by-step timeline and repair items meant to prevent similar outages. Dan Ives, a tech analyst at Yorkville Ives and Co., called it a Friday the 13th moment for Microsoft and said there would be major questions for the company.
The effects showed up in workplaces. One woman told CBS News Los Angeles that sending reports and getting items approved had become a challenge. Some social media users, by contrast, posted videos celebrating life without email. In Hong Kong, Danny Lau, who runs an aluminum firm, said his company's Outlook accounts could not receive updates from U.S. customers, and that a prolonged outage could affect his production timeline.
Companies felt it too. OpenAI and Anthropic each reported trouble connecting to Microsoft 365 tools, a sign of how outages spread as AI platforms increasingly work through other companies' software. U.S. industrial technology company Workhorse Group delayed a quarterly earnings call. Air India said flights were unaffected but temporarily rerouted its email services so customer queries kept arriving. IndiGo said its email support was disrupted and its ability to receive queries affected, though other support channels and flights ran normally.
Governments were drawn in as well. Singapore's Government Technology Agency said government email was down and that it was working with Microsoft. The Philippines' Supreme Court said the outage had affected some operations, including email responses. In Japan, Deputy Chief Cabinet Secretary Masanao Ozaki said government IT infrastructure was affected and officials were watching closely. In Sydney, Australia's Home Affairs Minister Tony Burke said he had spoken with Microsoft's top Australian executive and the national cybersecurity coordinator. Microsoft, he said, did not believe it faced a cyberattack but something similar to CrowdStrike, where an update had gone awry.
That comparison carries weight. In July 2024, a bug in a CrowdStrike update pushed bad data to millions of customer computers, grounding flights, taking TV broadcasts off the air and disrupting banks, hospitals and retailers. What to watch now is Microsoft's promised post-mortem, which should show whether the comparison holds and when full recovery arrives.
Citas Notables
We are deeply sorry for the disruption this incident has caused our customers and partners.— Microsoft, on X
Microsoft doesn't believe it is dealing with a cyberattack but something similar to CrowdStrike, where an update has gone awry.— Tony Burke, Australia's Home Affairs Minister (paraphrased)
Quieres la nota completa?
Lee el original en CBS News ↗