AI-powered Data Loss Prevention (DLP) for Microsoft Exchange Online
The Data Loss Prevention Challenges in Exchange Online
Unmonitored sensitive content
Credentials, PII, PHI and financial data flow freely through outbound emails and attachments with security teams blind to which users, distribution groups or shared mailboxes are creating the greatest compliance exposure.
Intelligent, automated policy enforcement.
Employees download sensitive attachments using Outlook clients and subsequently upload them to unauthorized cloud services or personal accounts with no data lineage to trace these movements across tenants.
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Partner collaboration risk
Employees lack simple tools to self-encrypt sensitive content when collaborating with external partners, forcing impossible choices between business velocity and security compliance when sharing necessary information outside your tenant.
Key Benefits
AI-powered
Pre-trained LLM and Computer Vision models detect sensitive content with 95% precision - even identifying data within complex spreadsheets, presentation decks, and images where native Microsoft Purview rules consistently fail.
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Complete Data Lineage
Trace sensitive email attachments from sending through downloading, subsequent sharing, and final destination - maintaining visibility even after data leaves your Exchange environment and crosses tenant boundaries.
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Comprehensive coverage
Monitor outgoing emails inline, shared mailboxes and all mailbox messages dating back years. Detect every instance of inappropriate sharing regardless of recipient domain or attachment type.
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Streamline Security Operations
Instantly block, quarantine in the Exchange admin center, or encrypt emails containing sensitive data based on recipient domain and content sensitivity. Apply consistent protection without relying on end-user judgment.
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Human Firewall
Coach employees with monitor-only policies that educate without blocking productivity. Enable self-encryption through an intuitive Outlook add-in that gives users flexible controls to disable forwarding, revoke access, and permanently protect attachments when sharing sensitive content across tenants.
Loved by innovative security teams
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Schedule a live demo
Nightfall AI DLP for Exchange Online
