Level Up

Challenge #12

Strengthen Administrative Security with MFA

Elevate the security of your administrative accounts in Microsoft 365 by implementing Multi-Factor Authentication (MFA), a crucial step in defending your organization’s core operations.

a network infrastructure requiring protection with multifactor authentication


Administrative accounts in any organization are akin to holding the keys to the castle. They possess elevated access and control, making them prime targets for cyber attacks. Simply having a strong password is no longer sufficient for these high-stakes accounts. That’s where Multi-Factor Authentication (MFA) comes into play.

Implementing MFA for administrative roles is more than an added security layer; it’s a fundamental necessity. MFA requires a secondary form of verification, such as a code from a mobile app or a biometric scan, making it exponentially harder for unauthorized individuals to gain access. This means that even if a password is compromised, the chances of a security breach are significantly minimized. For small and medium-sized businesses (SMBs), where every resource counts, MFA offers an efficient, cost-effective way to safeguard your most sensitive and critical access points.


Ensuring your Microsoft Teams meetings are shielded from anonymous access involves a few key steps.

    Step 1: Go to the Microsoft Defender Admin Center

    On your computer, launch a new browser window (Edge, Chrome), and type in https://security.microsoft.com/ and press enter.

    Note: You will require Microsoft 365 administrative credentials – be sure to have the username and password ready.

    Step 4: Enable the Attachments Filter
    • Within the Default policy window, scroll down and select Edit protection settings
    • Now we want to scroll back up until we see Protection Settings at the top
    • Just below Protection Settings, we want to check the box to Enable the common attachments filter
    • By default, several attachments are already included. You can view the current file types that are included by clicking Select file types
      • Within this window, you can choose to add more file types (by simply typing the file type extension without a preceeding period, such as “test”), or
      • You can also choose to exclude any file type extensions that may be critical to your business operations.
    • Once you are satisfied with the selections, click Done.
    • Back in the main window, you can now click Save.
    Step 2: Access Email & Collaboration Policies

    Within the Microsoft Defender Admin Center:

    • Look for and select Email & Collaboration on the left-hand menu
    • Under Email & Collaboration select Policies & rules
    • Now select Threat policies
    Step 3: Configure Anti-Malware Settings
    • Within the Threat policies window, select Anti-malware option under policies
    • Now select the Default policy

    While you’re here…

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