GreatHorn

GreatHorn provides a comprehensive email security platform designed to protect organizations against phishing attacks, data loss, and other advanced email threats across Microsoft 365 and Google Workspace environments. Their solution employs machine learning and automated threat detection capabilities to identify and mitigate phishing attacks from the time an email is received through each potential user action. GreatHorn's platform offers advanced threat intelligence that goes beyond native email security measures, safeguarding against credential theft, malware incidents, and business email compromise (BEC) attacks.

One of GreatHorn's key features is its ability to streamline threat management processes. Utilizing profile-driven granular engagement and visual intelligence for risk data, administrators can review, remove, and manage threats across the entire environment in seconds. Integration with existing SIEM/SOAR systems further simplifies threat management.

To enhance user awareness and protection, GreatHorn incorporates automated "smart banners" that educate employees on various types and levels of email security risks. These banners can be seamlessly integrated with security awareness vendors, enabling users to better understand risks and make informed decisions beyond traditional security awareness training.

GreatHorn's platform comprises multiple modules, including imposter protection (against spoofed domains and BEC attacks), link protection (with automated URL sandboxing), attachment protection (file isolation for zero-day threats), and mailbox protection (personalized email protection based on individual communication patterns and relationships). As of November 2018, GreatHorn expanded its flagship solution to address every potential stage of a phishing attack, encompassing threat detection, protection, defense, and incident response.