Microsoft Defender for Office 365
Email and collaboration security for Microsoft 365 environments
Microsoft Defender for Office 365
Email and collaboration security for Microsoft 365 environments
Data verified May 2026
ADYour product here. Reach security decision-makers.Launch a campaignMicrosoft Defender for Office 365 Description
Microsoft Defender for Office 365 is an email and collaboration security solution designed to protect Microsoft 365 environments from email-based threats and attacks targeting collaboration tools. The product provides protection against phishing attacks, including those using malicious links and QR codes, business email compromise (BEC), and malware. The solution extends protection beyond email to cover Microsoft Teams, SharePoint, and OneDrive with inline protection against malicious URLs and real-time detonation of attachments and links. It uses AI-powered sentiment analysis and large language models to detect attacker intent and filter malicious content. The platform includes extended detection and response (XDR) capabilities that analyze attacker intent, identify compromised assets, and contain threats in near-real time. Automated response features enable automatic disabling of compromised users, isolation of compromised devices, and post-delivery removal of malicious emails. Security teams receive visibility into threats through alerts and data across Microsoft collaboration tools, with investigation and hunting capabilities through a unified incident experience. The solution provides security posture optimization through recommended configurations and offers priority account support for sensitive accounts. The product includes security awareness training capabilities with phishing simulations and targeted education. Available in two plans (Plan 1 and Plan 2), it is also included in Microsoft Defender Suite.
Microsoft Defender for Office 365 FAQ
Common questions about Microsoft Defender for Office 365 including features, pricing, alternatives, and user reviews.
Microsoft Defender for Office 365 is Email and collaboration security for Microsoft 365 environments, developed by Microsoft. It is a Email Security solution designed to help security teams with Microsoft 365.
Microsoft Defender for Office 365 offers the following core capabilities:
1.AI-powered sentiment analysis for email filtering
2.Inline protection against malicious links and attachments in Outlook and Teams
3.Real-time detonation of attachments and links
4.Automated BEC attack disruption with user disabling and device isolation
5.Post-delivery removal of malicious emails
6.Extended detection and response (XDR) capabilities
7.Security posture optimization with recommended configurations
8.Priority account support for sensitive accounts
9.Phishing simulation and security awareness training
10.Unified incident investigation and threat hunting
Microsoft Defender for Office 365 integrates natively with Microsoft Teams, SharePoint, OneDrive, Outlook, Microsoft 365. Integration support lets security teams connect Microsoft Defender for Office 365 to existing SIEM, ticketing, identity, and notification systems without custom development.
Microsoft Defender for Office 365 is deployed as a cloud solution, suited to smb, mid-market, enterprise organizations looking to operationalize email security. The commercial offering is positioned for production security operations with vendor support and SLAs.
Microsoft Defender for Office 365 is built for security teams handling Microsoft 365. It supports workflows including ai-powered sentiment analysis for email filtering, inline protection against malicious links and attachments in outlook and teams, real-time detonation of attachments and links. Teams typically adopt Microsoft Defender for Office 365 when they need to email security capabilities integrated into their existing stack. Explore similar tools at https://cybersectools.com/alternatives/microsoft-defender-for-office-365
Microsoft Defender for Office 365 is a commercial Email Security solution. For detailed pricing information, visit https://www.microsoft.com/en-us/microsoft-365/security/office-365-defender/ or contact Microsoft directly.
Popular alternatives to Microsoft Defender for Office 365 include:
1.ConnectWise Email Security - Email security platform with AI threat detection, BEC protection, and DLP (Commercial)
2.Vade (Hornetsecurity) 365 Total Protection - AI-powered email security platform for Microsoft 365 with backup & compliance. (Commercial)
3.Cisco Secure Email Threat Defense - Email threat protection for Microsoft 365 with advanced detection capabilities (Commercial)
4.Hornetsecurity 365 Total Protection - Comprehensive M365 security suite with email protection, backup, and compliance (Commercial)
5.ESET Cloud Office Security - Cloud email security for Microsoft 365 and Google Workspace applications (Commercial)
Compare all Microsoft Defender for Office 365 alternatives at https://cybersectools.com/alternatives/microsoft-defender-for-office-365
Microsoft Defender for Office 365 is for security teams and organizations that need Microsoft 365. It's particularly suitable for enterprises requiring robust, commercial-grade security capabilities. Other Email Security tools can be found at https://cybersectools.com/categories/email-security
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