DGNEXA · Göktuğ Yüksel
Microsoft 365 account security: a practical starting point for a small team
Review MFA, administrator access and account recovery before making Microsoft 365 security changes in a small business.
A Microsoft 365 subscription does not tell you how well your accounts are managed. For a small team, a useful first review covers who can sign in, which accounts can change the environment and what happens when someone loses access. Start with an inventory and a responsible owner, rather than a collection of unrelated settings.
Check how MFA is enforced
Multifactor authentication adds another verification step to a sign-in. Confirm the policy that actually applies to your users, not just whether someone once registered an authenticator. Microsoft provides security defaults and, with appropriate licensing, Conditional Access. Ask your administrator to check coverage and exclusions before changing anything. A screenshot showing that MFA exists somewhere is not evidence that every intended account is covered.
Make administrator access deliberate
List privileged accounts, their owners and the tasks that require those permissions. Routine email and document work should not depend on broad administrator rights. Agree who approves access changes and how temporary access will be reviewed. Include any IT provider in this inventory, so business ownership does not disappear when a support arrangement changes.
Plan for a lost phone or an unavailable administrator
Someone will eventually replace a phone, lose a device or be absent when a change is needed. Decide how identity will be checked before recovery and who can authorise help. Document an emergency-access procedure with your IT provider and keep it separate from ordinary shared passwords. Test the process in a planned session rather than during a lockout.
Turn the review into an action list
Record each finding, its business impact, an owner and the next review date. Ask which improvements can be made with your current subscription before evaluating additional licences. Pilot changes with an agreed set of users and confirm that required applications still work. Keep a short record of what was changed and how staff should get help.
Take this checklist to your next IT review
- An owner is recorded for every administrator account.
- MFA coverage and exceptions have been reviewed.
- Account recovery has an agreed approval process.
- Each improvement has an owner and a review date.
How DGNEXA can help
DGNEXA can review the account setup, agree priorities and support the changes within a defined scope. Bring a list of users, current subscriptions and the people authorised to approve changes; do not send account passwords in an enquiry.
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