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GreatHorn (Barracuda)

GreatHorn, now part of Barracuda, delivers cloud-based email security with mailbox-level protection against phishing and advanced threats.

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About

GreatHorn, acquired by Barracuda Networks, operates as a cloud-based email security platform that provides mailbox-level protection against sophisticated email threats. The platform specializes in detecting and preventing phishing attacks, business email compromise (BEC), and advanced persistent threats that traditional email security solutions often miss.

The platform employs advanced threat detection algorithms and behavioral analysis to identify malicious emails in real-time. GreatHorn analyzes email content, sender reputation, and communication patterns to detect anomalies that indicate potential threats. The solution integrates directly with Microsoft 365 and Google Workspace environments without requiring changes to existing email infrastructure.

What distinguishes GreatHorn is its focus on post-delivery threat remediation and user-centric security awareness. The platform can automatically quarantine suspicious emails after delivery and provides incident response capabilities for security teams. Additionally, it offers integrated security awareness training that delivers contextual education to users based on actual threats they encounter.

The solution serves enterprise organizations, managed service providers, and government agencies that require robust email security protection. Security teams use GreatHorn to supplement existing email gateways and provide an additional layer of defense against targeted attacks. The platform is particularly valuable for organizations facing sophisticated spear-phishing campaigns and social engineering attacks.

Key features include:

  • Real-time threat detection using machine learning and behavioral analysis
  • Post-delivery remediation with automatic quarantine capabilities
  • Incident response tools for security team investigation and response
  • Integrated security awareness training based on actual threat encounters
  • API-based integration with Microsoft 365 and Google Workspace

As part of Barracuda's email security portfolio, GreatHorn enhances the company's comprehensive approach to email protection. The platform addresses the growing need for advanced threat protection in cloud email environments where traditional perimeter security proves insufficient against modern attack vectors.