Microsoft’s Global Outage: Key Lessons for Indian Businesses

Millions of enterprises on Thursday night and Friday morning were unable to access different Microsoft services such as Outlook (email), Team messenger, and so after its Microsoft 365, company’s cloud-based subscription service that integrates core productivity software, collaboration tools, cloud storage, and security features. 

According to Microsoft, the outage happened due to some issue in a configuration update leading to some servers becoming overloaded and eventually shutting down. 

“When the company attempted to apply a fix, servers that had come back online again became unresponsive when traffic began returning to them.As some servers went down, traffic was funnelled on to the remaining servers, causing traffic problems for those remaining online.To understand what was bringing down the servers, the company began limiting the traffic that could reach affected servers in specific locations, and, on some servers, rolled back to an earlier software configuration to see if it fixed the problem,” said the company in a post. 

Apart from end users, several companies including large ones deploy Microsoft 365 for productivity. According to reports, several government agencies, courts, schools, startups, and aviation around the world faced a huge disruption. 

According to a report, the UK’s medical sector was severely impacted with issues relating to surgeries and prescriptions. Back in India, Indian airlines IndiGo and Akasa Air reported that their email services were impacted. Similar disruptions were seen in Japan, Taiwan, and other parts of the world. 

That said, it’s not the first time such a global service has faced a major outage.

The recent Amazon Web Services outage reportedly impacted more than 2,000 large organisations and about 70,000 organisations overall. Insured loss for the AWS outage was projected between USD 38 million and USD 581 million. 

Clearly, there are risks involved in dependence on such global service providers. 

“These outages serve as a lesson that even the biggest technology companies in the world cannot provide uninterrupted service. Organisations must shift from relying on one service provider to ensuring their own resiliency. Every organisation needs a business continuity strategy, which will include their own independent communication lines, data protection, access to information, and recovery process,” Manoj Dhanda, Founder & CEO of Utho Cloud, tells Entrepreneur India. 

“The common mistake that organisations make is to think that just because they use the biggest technology company in the world, they do not need to have a backup plan. Cloud computing reliability is the responsibility of the service provider, but business continuity remains the responsibility of the customer.”

Sambratha Shetty, Chief Operating Officer (COO), Synergia Foundation suggests businesses must have backup options akin to how a DG set would work. A back up will ensure uninterrupted services, including emails, approvals, and collaboration, among others. 

“When a single platform holds your mail, calendar, files, chat and now your AI assistant, one failure doesn’t just slow you down; it erases your organisational memory and voice for hours. Records you can’t access during a crisis are, functionally, records you don’t have,” Shetty added. 

Businesses must also consider that they own their domain and DNS independently of their mail provider, so they can redirect mail in minutes rather than being locked in. Keep regular local or third-party backups of mailboxes and key documents, and maintain an offline contact sheet for employees, top customers, vendors and banks.

Moreover, there should be a mechanism for countering bigger threats. Even as outages can be resolved, but in case of security incidents or even larger issues like submarine cable cuts or regulatory challenges like sanctions and export controls, business must consider resilience planning, and gaps that cloud alone cannot solve for. 

The world’s cloud infrastructure rests on three companies, which makes switching a strategic necessity, not a luxury. In Q3 2026, Amazon held 26% of the global cloud infrastructure market, with Microsoft at 19% and Google at 16%. That means roughly six of every ten rupees spent on cloud flow to just three providers. When one stumbles, a large slice of global business stumbles with it.

While having a back up option appears to be a necessity more than a novelty, it’s harder to put in place given the costs and access, especially for smaller players. 

When the CrowdStrike update failed in July 2024, it caused an estimated USD 5.4 billion in direct losses for Fortune 500 companies, according to insurer Parametrix. More striking, cyber insurance was expected to cover only 10% to 20% of those losses. In other words, insurance won’t save you; architecture will. For an Indian SME, a day without email can mean lost orders, missed GST deadlines and broken customer trust.

Multi-provider strategies are becoming increasingly viable and economical, especially with the use of open technologies and cloud infrastructure providers. But changing providers is no easy task; for mail providers, organisations have to coordinate the migration of the mailboxes, identity management, DNS routing, and security policies ahead of time.

“Not every business needs to duplicate its entire infrastructure. A more cost-effective approach is to identify mission-critical services and maintain independent backup or recovery capabilities for those workloads. For India’s startups and SMEs, this can be accomplished using a combination of main global providers and independent cloud service providers in India itself. What we want to do is not to double pay for everything but to make sure that if one provider fails, our business does not fail too,” Dhanda added.

According to Shetty, businesses can consider a “critical-few” model, which is essentially a low-cost secondary mail and messaging setup for leadership, finance, customer support and compliance teams, typically a small fraction of the primary licence spend.

“Diversify across layers, not just vendors. Avoid having email, login, file storage, chat and AI all sitting with one provider. If your single sign-on fails along with your mail, a backup tool you can’t log into is useless,” Shetty recommends. 

That said, the outage also shows AI’s limit as they run on the same infrastructure as the mail it was meant to manage. AI layered on a single point of failure inherits that single point of failure. Even as AI integration is likely to continue, it should be prompt enough to detect outages early, automatically route traffic to backup channels and keep customers informed.

But that only works when the AI itself runs across independent infrastructure, with a human-run manual fallback, and the postal layer at the very end, for when everything digital goes dark.