Enable MFA Security In Office 365

Are You Missing Crucial Security Features in Office 365?

Do you have MFA?

What is MFA?

Multi factor authentication (MFA), is the ability to verify a login with at least one other verification point, beyond a single password. MFA for Office 365 is included as part of the Office 365 subscription at no additional cost.

Who should be using MFA?

Today, all users should be leveraging this security feature. In recent past, multi-factor authentication (MFA) was only available to the most security conscious companies. Large capital, and operational costs kept this functionality within the realm of the large enterprise, which considered perimeter security essential to their business. In today’s climate of cybersecurity breaches, secure authentication practices are mandatory to avoid corporate embarrassment, and hefty financial consequences. Also, the advent of the smartphone provided alternatives to the hard token smart cards. Soft tokens provided a simpler distribution method, and simplified an IT or security department’s operational costs, but the supporting infrastructure, software, and integration still intimidated interested organizations. Public cloud and SaaS products existing outside of the borders of an Enterprise forced providers to meet the security requirements existing on premise.

Why should I implement MFA?

Today, not having MFA enabled on public cloud services poses a tremendous security risk. MFA immediately reduces phishing and social engineering attacks by forcing an employee to accept and verify a login attempt. Passwords can be breached without exposing corporate data to the hacker. Secondarily, a verification request notifies the end user that something is amiss with their password, giving them the opportunity to update it, and investigate how the password was compromised.

How do I implement it?

In this post we will quickly walk you through the simplicity of enabling MFA in Office 365. Microsoft highly recommends enabling MFA for administrators at a minimum. Selectively enabling MFA provides organizations the opportunity to slowly roll out this essential security feature to minimize impact on the support organization.

Going to this link and logging in with a Global administrator on your tenant will bring you to the administrator portal for MFA.

Once there, simply select the individual users you want to enable it for, then click enable.

Setting up MFA

MFA is now enabled for this user. The next time they login they will be prompted to set up their alternate access methods and preferred mechanism for verification.

How does it work?

When the user first logs in, they will be required to configure their alternate access method, and verify it works. This alternate access method can be either a smartphone with the Microsoft Authenticator app installed, a phone number that accepts text messages, or an alternate email address. The Microsoft Authenticator app also provides a rotating number that can be used as the second factor. The image below shows an example of an ‘Approve sing in request’, on a smartphone using this app.

Approve sign in request

After verification, the user has full control over the MFA settings.

…not so fast!

Not all applications use Microsoft’s modern authentication method which supports MFA. If you aren’t using the Outlook app on your mobile phone, you will need to generate a highly complex app password to allow you to authenticate without the second factor. Microsoft recommends you create a unique app password per device, so that it can be deleted in the event you lose that device. Once generated, copy the password to your clipboard – as this password will not be generated or seen again (see below). You can simply create a new password if you lose, or need to reset it. A user can manage their app passwords at https://account.activedirectory.windowsazure.com/AppPasswords.aspx.

Creating a new password is easy and quick. See the steps below to create an app password.

1) Create a name for your app password

Create App Password Name

2) Copy the new password to your clipboard

App Password

If you have any questions activating MFA for Office 365, contact us for help.

Regards,

Mike Coccimiglio

About The Author


Mike C

Mike Coccimiglio
As the Director, of Managed Services Solutions at WatServ, Mike is responsible for the daily operations and delivery of the solutions we provide to our customers.

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