Microsoft Global Outage Disrupts Irish Healthcare, Schools and Government Services
DUBLIN: A major technical outage affecting Microsoft’s global services has caused widespread disruption across several countries, including Ireland, interrupting healthcare systems, school IT services and government communications.
The disruption affected millions of users who were unable to access essential services, particularly Outlook email. Other Microsoft platforms, including Teams, Copilot and Microsoft 365, also experienced problems.
In Ireland, the outage affected prescription-related communications in the healthcare sector, as well as the operation of schools and email services across several government departments.
The Health Service Executive’s (HSE) Healthmail system, which is widely used by healthcare professionals to exchange prescriptions and other medical information, was among the services affected.
The HSE advised general practitioners and pharmacists to issue prescriptions under the General Medical Services (GMS) scheme on paper until the technical problems were resolved.
Schools relying on Microsoft 365 also experienced difficulties with communications, online learning and the submission of student assignments. Paul Crone, director of the National Association of Principals and Deputy Principals, said the disruption had forced teachers to make adjustments to their teaching plans. Secondary schools were reportedly more severely affected than primary schools.
Email services used by several government departments and public agencies were also disrupted. Officials confirmed that the Road Safety Authority’s dedicated email services had been affected.
Ireland’s National Cyber Security Centre said preliminary investigations indicated that the incident was caused by an engineering failure within Microsoft’s technical infrastructure. There was no evidence of a cyberattack.
However, the centre urged the public to remain vigilant against suspicious phone calls, text messages and emails containing unfamiliar links, warning that scammers could exploit widespread service disruptions to target users.
Which services were affected?
The outage affected several widely used Microsoft products, including Outlook, Teams, Word, OneDrive and the company’s artificial intelligence assistant, Copilot.
Microsoft did not disclose the exact number of users affected. However, more than 450 million people worldwide use Microsoft 365 services, highlighting the potential scale of the disruption.
What caused the outage?
Microsoft attributed the disruption to server overload across different parts of its global infrastructure.
According to the company, some servers unexpectedly went offline, placing additional pressure on the remaining systems and affecting the availability of services.
Microsoft also suspected a malfunction involving a component responsible for monitoring server performance and operational health.
The company said it had found no evidence of a cyberattack.
Although services were largely restored, Microsoft warned that some users could continue to experience intermittent interruptions and delays in receiving emails as systems returned to normal.
Global disruption across multiple countries
The scale of the outage was reflected in reports received by Downdetector, a website that monitors service disruptions. The platform recorded complaints about Microsoft 365 from users in 74 countries within an hour, although the actual number of affected countries may have been higher.
Microsoft confirmed that users of its services across multiple regions could experience difficulties.
In the United Kingdom, the National Health Service (NHS) introduced contingency measures, switching to alternative IT systems and paper-based records to minimise disruption to medical appointments and patient care.
Government and law enforcement agencies in Australia, including the country’s intelligence agency and Federal Police, also experienced problems. In New Zealand, visa application services were temporarily suspended.
Several airlines in India reported disruption to their email support services. Artificial intelligence companies Anthropic and OpenAI also reported problems involving their connections to Microsoft services.
Initial reports of the outage were concentrated in North and South America, with relatively few complaints emerging from Ireland during the early stages.
Microsoft initially acknowledged that users in several regions of the United States were experiencing difficulties accessing their Exchange Online email accounts.
As the technical problems spread across its infrastructure, reports of service interruptions increased worldwide, affecting businesses, public institutions and individual users.
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