Microsoft 365 Security and Compliance for Firstline Workers

Endpoint detection and response, threat and vulnerability management, and attack surface reduction for Windows, macOS, Linux, iOS, and Android devices.

Endpoint detection and response: attack surface reduction, behavioral monitoring, and automated investigation/remediation for Windows, macOS, Linux, iOS, and Android devices.

Protects email and collaboration content from phishing, malware, and malicious links via Safe Links and Safe Attachments.

Protects mail and collaboration content from phishing and malware: Safe Links, Safe Attachments, and anti-phishing at Plan 1; adds automated investigation/response, attack simulation, and threat hunting at Plan 2.

Monitors on-premises Active Directory signals to detect compromised identities and malicious insider actions.

Monitors on-premises Active Directory signals (via a lightweight sensor on domain controllers) to detect compromised identities and lateral-movement/privilege-escalation attacks.

A cloud access security broker (CASB) that discovers shadow IT and applies access and session controls to third-party cloud apps.

A cloud access security broker (CASB): discovers shadow IT, and applies session/access policies across sanctioned SaaS apps. The Office 365-scoped tier only covers Microsoft 365 activity; the full product extends that policy control to third-party cloud apps.

Advanced eDiscovery search, review, and analysis tools, including machine-learning-assisted review, for legal and compliance investigations.

Search, hold, and export content across mailboxes, SharePoint, OneDrive, and Teams for a legal or investigative matter. Standard covers search/export; Premium adds review sets, custodian management, and analytics (near-duplicate detection, email threading, predictive coding).

Adds automatic and recommended sensitivity labeling on top of Information Protection for Office 365 Standard's manual labeling.

Classify and protect content (encryption, watermarking, access restriction) by applying labels users pick or that get applied for them. Manual, user-applied labeling is the base tier; automatic labeling (content is scanned and labeled without user action) needs the higher tier.

Extends Microsoft Purview Audit with a longer retention window and additional high-value audit log events for forensic investigations.

A searchable log of user and admin activity across Microsoft 365. Standard covers 180 days of retention and core events; Premium extends retention to a year (with add-ons to 10 years), adds high-value crucial events (mailbox access, mail-forwarding-rule changes), and higher log bandwidth for faster forensic investigation.

Reporting on sensitivity-label usage and information-protection activity across the tenant.

Visibility into where labeled/sensitive content actually lives and how it moves (Content Explorer, Activity Explorer) — distinct from Sensitivity Labels itself, which covers creating and applying the labels; this is the reporting/analytics layer on top.

Scans internal and external communications for policy violations such as harassment, regulatory breaches, or sensitive-data sharing.

Scans internal and external communications (Teams, Exchange, third-party connectors) for policy violations — harassment, regulatory/insider-trading language, sensitive-data sharing — and routes matches to reviewers.

Lets an organization supply and control its own encryption keys for Microsoft 365 data at rest.

Supply and control your own encryption keys for Microsoft 365’s at-rest data encryption layer, so Microsoft can’t access your content without your key.

Requires explicit customer approval before a Microsoft engineer can access content to resolve a support request.