https://store-images.s-microsoft.com/image/apps.22904.eed1547d-a1b1-417b-b586-45ba56ae4abc.beae603f-19fb-4799-8535-1844cc8ae3e1.dbd23093-7077-428c-8c3a-744e45106032

Halcyon for Microsoft Sentinel (Preview)

by Halcyon Tech, Inc.

Halcyon integration with Microsoft Sentinel for ransomware detection and unified security visibility

Purpose-Built Anti-Ransomware Protection Integrated with Microsoft Sentinel

Ransomware moves in seconds, not days. Halcyon integrates natively with Microsoft Sentinel and Microsoft Defender for Endpoint (MDE) to deliver earlier detection, automated response, and immediate containment of ransomware threats across the Microsoft security stack.

Together, Halcyon and Microsoft provide a unified defense that transforms ransomware detection into actionable, automated protection stopping attacks before business disruption occurs.

The Challenge

Modern ransomware campaigns are fast, evasive, and human-operated:

  • Threats bypass traditional EDR and security controls
  • Manual response workflows delay containment
  • Endpoint tampering disables security protections
  • Fragmented tooling slows investigation and response

Even well-deployed Microsoft environments need purpose-built ransomware intelligence and automated containment to close these gaps.

Key Capabilities

Unified Threat Visibility with Microsoft Sentinel

  • Halcyon ransomware alerts mapped directly to Sentinel’s schema
  • Correlated visibility across Halcyon, Defender, and Microsoft telemetry
  • Faster investigation using KQL, Sentinel analytics, and Security Copilot
Anti-Tamper Monitoring via Microsoft Defender + Halcyon Sidekick
  • Continuous monitoring of Defender health and integrity
  • Detects EDR tampering, bypass attempts, and privilege escalation
  • Ensures Microsoft Defender protections remain active during attacks

Re-Infection & Lateral Movement Prevention

  • Continuous monitoring to detect and disrupt ransomware propagation
  • Behavioral intelligence identifies malicious activity attempting to re-establish persistence or move laterally
  • Ensures threats are fully contained and prevents re-compromise after isolation

Microsoft-Driven Ransomware Response Workflow

Detect

Halcyon identifies ransomware behaviors earlier than traditional EDR

See

Alerts appear natively inside Microsoft Sentinel with full context

Respond

Sentinel automation triggers response actions

Contain

Infected endpoints are isolated immediately to stop propagation