Microsoft 365: 3 indispensable security actions

1️⃣ 🔑 Multi-Factor Authentication (MFA) with Conditional Access.

✅ What does it entail?
An additional layer of security with a second authentication step, such as:

• Mobile app (e.g., Microsoft Authenticator)
• SMS message

Conditional Access limited access based on:

• Location
• Device type

🎯 Why important?

• Protects against hackers even with stolen passwords.
• Blocks risky logins with smart access rules.

👉 Impact for users:
Users must register for MFA and install the Microsoft Authenticator app on their mobile device, for example.

 

 

2️⃣ 🚫 Block legacy authentication

✅ What does it entail?
Disable old authentication methods and protocols that are vulnerable to attack, such as:

• Email clients prior to 2016 (e.g., Outlook 2010 or 2013)
• Old scanners or MFP devices

🎯 Why Important:
Legacy authentication does not support modern security standards such as MFA and makes your organization vulnerable. 👉 Impact to users:
Some older apps and devices may no longer work. Time to upgrade to modern solutions!

 

 

3️⃣ 📧 Limit logins on shared mailboxes

✅ What does it entail?
Avoid direct logins to shared mailboxes, as they often:

• Having bad passwords
• Not supporting an MFA

🎯 Why Important
Shared mailboxes are a popular target for cyberattacks. By giving users access as “delegates,” you significantly reduce the risks. 👉 Impact to users:
Users can no longer do direct logins, but work through their delegated permissions.

 

 

🚀 Conclusion: straight to work!

By implementing these top 3 essential security actions, you will make your Microsoft 365 environment much more secure. Smaller steps can make a big difference against modern cyber threats. 🔒

Secure your organization today and take proactive measures! Need help implementing, feel free to contact us.