Microsoft Defender for Office 365 Alternatives (January 2026)

Microsoft Defender for Office 365

Microsoft Defender for Office 365 | Microsoft Security

https://www.microsof.com/en-us/security/business/siem-and-xdr/microsoft-defender-office-365/

Get advanced threat protection with Microsoft Defender for Office 365 and protect against cyber threats like business email compromise and phishing.

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1.
Microsoft Defender XDR | Microsoft Security
https://www.microsof
.com/en-us/security/business/siem-and-xdr/microsoft-defender-xdr/

Explore how Microsoft Defender XDR helps identify and stop cyberattacks across endpoints, identities, email, collaborations tools, SaaS apps, cloud workloads, data loss insights, and more.

2.
Microsoft Defender for Business | Microsoft Security
https://www.microsof
.com/en-us/security/business/endpoint-security/microsoft-defender-business/

Learn about Microsoft Defender for Business, an endpoint security solution built to help protect small businesses against cybersecurity threats.

3.
Email Security Solutions | Ransomware, Phishing & More | Cloud-Based |
https://contentcatche
.com/

Email Security, Archiving, Encryption, & Awareness Training. Compatible with Office 365. Virus, Phishing, Ransomware & Malware Protection.

4.
Microsoft Defender Threat Intelligence | Microsoft Security
https://www.microsof
.com/en-us/security/business/siem-and-xdr/microsoft-defender-threat-intelligence/

Microsoft Defender Threat Intelligence is a dynamic threat intelligence solution that helps protect your organization from modern cyberthreats and exposure.

5.
Cloud Security Services | Microsoft Security
https://www.microsof
.com/en-us/security/

Protect your data, apps, and infrastructure against rapidly evolving cyberthreats with cloud security services from Microsoft Security.

6.
Microsoft Defender for Cloud Apps | Microsoft Security
https://www.microsof
.com/en-us/security/business/siem-and-xdr/microsoft-defender-cloud-apps/

Get full visibility of your SaaS app landscape and take control of your apps with Microsoft Defender for Cloud Apps, a comprehensive SaaS security solution.

7.
Microsoft Defender for Endpoint | Microsoft Security
https://www.microsof
.com/en-us/security/business/endpoint-security/microsoft-defender-endpoint/

Microsoft Defender for Endpoint helps stop attacks, scales endpoint security resources, and evolves defenses. Learn more about cloud-powered endpoint protection.

8.
Advanced Email Security | Mimecast
https://www.mimecas
.com/products/email-security/

Email security is critical for all organizations. Block all email attacks using Mimecast's advanced email security product with targeted threat protection.

9.
Email Fraud Defense - Business Email Compromise BEC | Proofpoint US
https://www.proofpoin
.com/us/products/email-protection/email-fraud-defense/

Protect your organization from today’s advanced email threats, business email compromise (BEC), and consumer phishing with Proofpoint's Email Fraud Defense.