MFA for businesses: protect Microsoft 365 access
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MICROSOFT 365 · ACCOUNT ACCESS More than a password.
  1. 01 Sign in
  2. 02 Verify your identity
  3. 03 Open permitted work apps
The method and access rules depend on your configuration.

MFA for businesses: protect Microsoft 365 access

A strong password alone is not enough. Learn what MFA does and does not protect and how Radorfa helps configure access to Microsoft 365 with care.

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Why a password alone is not enough

An employee receives a convincing sign-in page and enters a password. If that password is stolen, you want another check before someone can open business email or documents. Multi-factor authentication (MFA) asks for more than a password. In Microsoft 365, Microsoft Entra ID manages access and authentication methods.

MFA methods offer different protection

An additional sign-in step reduces the risk of account misuse. However, codes can be intercepted and users can approve misleading requests. Phishing-resistant methods such as FIDO2 passkeys are designed to bind sign-in to the correct website or application. The appropriate method also depends on your devices and users.

Make access practical for employees

Radorfa reviews the accounts, devices and applications in use. We then discuss the sign-in method, registration and support. Consider colleagues changing phones, shared workplaces and recovery if a security key is lost. Record who checks and handles these requests.

Test before a wider rollout

Start with a limited group. Ask colleagues to perform their normal tasks: sign in to Outlook, Teams and a business application. Also check what happens with an unfamiliar device or a lost authentication method. Update instructions before the next group switches. This keeps the technology connected to daily work.

MFA is part of your security approach

MFA does not replace access management, updates, monitoring or recovery planning. A compromised device or stolen session may create a different risk. Document the permissions needed, how suspicious sign-ins are assessed and who helps users. A single security setting does not demonstrate that the organisation meets every legal requirement.

Explore our Microsoft 365 security approach

Source: Microsoft Learn on passkeys and phishing-resistant authentication.

Frequently asked questions

Can MFA prevent every attack?

No. MFA reduces sign-in risks, but devices, sessions, permissions and data also need protection and follow-up.

What is a phishing-resistant sign-in method?

A method such as a FIDO2 passkey that binds sign-in to the correct website or application. We assess which method fits your devices and users.

How does Radorfa help with rollout?

We inventory accounts and applications, discuss configuration and test normal sign-ins and recovery procedures with a pilot group.

What does this mean for your organisation?

Tell us which question from this article applies to you. We review your current situation and discuss a practical next step.

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