GreatHorn is a cybersecurity company that specializes in email security solutions. Offering cloud-native security platforms, the company focuses on protecting organizations from phishing, malware, and social engineering attacks. GreatHorn's technology integrates with cloud-based email systems, enhancing their security by using machine learning to identify and mitigate potential threats in real-time. The company also provides tools for threat detection, response automation, and risk management to enhance overall organizational security posture.