Microsoft 365 outage: what it means and how to prepare

What is happening?

Microsoft's public service-health page reported service degradation affecting Microsoft 365 on 13 November 2026. Reported effects include difficulty accessing Outlook or Exchange Online, delayed email and failures in features that rely on Exchange data.

Some Microsoft Teams functions that depend on calendars, contacts or Exchange Online may also be affected, even where core calls and messages continue to work. Microsoft has said it is working on server stability and traffic flow. Its public updates said there was no indication that the disruption was caused by malicious activity.

The position can change quickly. Check Microsoft's official service-health page for the latest status rather than relying on screenshots or old social posts.

Why this can feel worrying

Email and collaboration tools sit quietly behind school assignments, appointments, workplace messages, calendars and public services. When several connected services stop working together, people can lose access to information they expected to be available immediately.

That does not mean a wider emergency is under way. It does show how a single technical problem can interrupt normal routines across many organisations at once. If you are waiting for an important message, check the sender's official website or an agreed alternative contact route.

What you can do now

Avoid repeatedly resetting passwords when a confirmed service outage is the likely cause. Record the error and time, follow your school or employer's approved instructions and use only authorised alternatives. Do not move confidential work, school or health information into a personal account simply to bypass an outage.

Keep a short paper list of essential phone numbers and reference details. If policy permits, keep an offline copy of the documents you would genuinely need during a disruption. Agree one alternative way for your household to make contact, and keep phones and a power bank charged.

Be alert for opportunistic messages claiming that you must urgently sign in to restore access. Open the service or its official status page directly instead of following unexpected links.

• Write down essential family, school, workplace and care contacts.
• Know where official service updates and local instructions are published.
• Keep devices charged and check that your charging cables work.
• Agree an alternative contact method before you need it.
• Follow data-protection and security rules during any workaround.

Why this belongs in a Be Ready plan

Preparedness is not only about dramatic emergencies. It is about making ordinary disruption easier to manage. A cloud outage, broadband failure or power cut can all remove access to messages, calendars and saved information for a time.

The useful response is calm and proportionate: keep key information in more than one safe form, make a simple household plan and know which official sources to check. Start with what you already have, then fill genuine gaps rather than buying from fear.

Be Readyford is independent and this article is not a live warning service. Call 999 if someone is in immediate danger.