Account Security Problems

How to Understand Microsoft 365 and Windows Security Features

Maira Mehtab Sep 28, 2026 869 views

Question details

The user requires an overview of the available security and protection features included across different Microsoft 365 and Windows licenses.

Product: Microsoft 365 and Windows
Device & OS: not provided
Scenario: Determining which security capabilities, such as Microsoft Defender and device protection, are included based on the specific Microsoft subscription plan.
Observed behavior: Security capabilities vary significantly depending on whether the user has a consumer, business, or enterprise license, requiring clarification on the available protections.

Before you start

Before reviewing your security features, ensure you know your current Microsoft 365 subscription tier (e.g., Personal, Family, Business Premium, or Enterprise), as this strictly determines your protection level.

Solution 1Recommended

Verify Included Security Features Based on Your Microsoft License

Identify the specific security tools available to you by checking your Microsoft 365 plan and Windows version.

Microsoft provides security features primarily through Windows Security and Microsoft Defender. However, the exact capabilities—such as identity protection, device security, email filtering, and threat monitoring—depend heavily on your specific license.

Consumer plans typically include basic endpoint protection, while Business and Enterprise plans offer advanced threat protection, centralized management, and cloud security features.

Identify your subscription

Log in to your Microsoft Account dashboard online and navigate to the 'Services & subscriptions' tab to check your exact Microsoft 365 license type.

Open Windows Security

On your Windows device, click the Start menu, type 'Windows Security', and open the app to view your active protection areas like Virus & threat protection, Firewall, and network protection.

Review Defender capabilities

If you have a business or enterprise license, visit the Microsoft 365 Defender portal to access advanced email, identity, and cloud app security features.

Consult official documentation

Compare your specific plan against Microsoft's official security and privacy documentation to understand any gaps in your current protection setup.

License Upgrade Requirements: Advanced features like Microsoft Defender for Endpoint or Office 365 Advanced Threat Protection typically require upgrading to a premium business or enterprise license.

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3. Secure your documents: Use the built-in encryption by navigating to Menu > Document Encryption to securely password-protect your important files.

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Frequently Asked Questions

Does Windows 10 and Windows 11 come with free security features?

Yes, Windows includes Windows Security (formerly known as Windows Defender), which provides free, built-in antivirus, firewall, and basic device protection for all users regardless of their Microsoft 365 subscription.

What is the difference between Windows Security and Microsoft Defender for Microsoft 365?

Windows Security is the local application on your PC that manages basic device protection. Microsoft Defender for Microsoft 365 is a premium, cloud-based service offering advanced threat protection across email, endpoints, and identities, primarily designed for business and enterprise users.

Can I password-protect individual documents in Microsoft 365?

Yes, you can encrypt individual documents with a password in Microsoft Word, Excel, and PowerPoint by opening the file, going to File > Info > Protect Document, and selecting 'Encrypt with Password'.

Microsoft Office Security Issues