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Microsoft Defender for Office 365
by Microsoft
Visit Microsoft Defender for Office 365 Alternatives Pricing
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| Microsoft Defender for Business | Paid yearly; annual subscription auto-renews. · Up to 300 users · Up to five devices per user · No minimum device requirement | $3 a month |
| Microsoft Entra Internet Access | Annual subscription—auto renews · Secure employee access to internet, AI, and SaaS apps · Protect against internet threats | $5 a month |
| Microsoft Entra Suite | Annual subscription—auto renews · Includes Secure Web and AI Gateway capabilities · Continuous, adaptive Conditional Access · Identity governance and real-time risk detection | $12 a month |
| Microsoft Defender for Office 365 (Plan 1) | $2.00 user/month, paid yearly; annual commitment · Email, Teams, SharePoint, OneDrive protection · malicious links and QR codes · zero-day malware protection · internal email protection · real-time reporting | $2 |
| Microsoft Defender for Office 365 (Plan 2) | $5.00 user/month, paid yearly; annual commitment · Plan 1 features · cyberthreat hunting · attack simulation training · automated investigation and response · cross-domain XDR capabilities | $5 |
As microsoft.com lists them, read 20 Sept 2026. The maker's own page has the final word.
Facts from Microsoft's own pages
- AI protection
- Microsoft says it uses language models with sentiment analysis for email and collaboration security. · microsoft.com, 13 Nov 2026
- BEC response
- The product describes AI-based BEC containment involving disabling compromised users, isolating devices, and removing malicious email after delivery. · microsoft.com, 13 Nov 2026
- Coverage
- The product protects email and collaboration tools including Teams, SharePoint, and OneDrive. · microsoft.com, 13 Nov 2026
- Headquarters
- Redmond, Washington, United States · microsoft.com, 23 Sept 2026
- Inline protection
- It can block malicious links and attachments in Outlook and Teams with user awareness banners. · microsoft.com, 13 Nov 2026
- Plan 2 capabilities
- Plan 2 adds cyberthreat hunting, automation, attack simulation training, and cross-domain XDR capabilities to Plan 1. · microsoft.com, 13 Nov 2026
- Purpose
- Defender for Office 365 helps stop phishing, business email compromise, and malware before they reach a team. · microsoft.com, 13 Nov 2026
- SIEM integration
- Microsoft documents integration with SIEM using audit logs and describes streaming email event data to Microsoft Sentinel. · learn.microsoft.com, 13 Nov 2026
- Trial
- Microsoft offers a 90-day trial of Plan 2; the trial automatically provisions Plan 2 licenses when required. · learn.microsoft.com, 13 Nov 2026
- Trial availability limit
- Trials and evaluations are unavailable to U.S. Government and Microsoft 365 Education organizations. · learn.microsoft.com, 13 Nov 2026
- Trial data retention
- Trial data is accessible for 30 days after trial expiration, after which trial-related policies and data are deleted. · learn.microsoft.com, 13 Nov 2026
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