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Graphus vs GreatHorn

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GraphusEmail Security Platforms

GreatHornEmail Security

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Email Security Platforms

Overview

Focus

Email Security Platforms

Email Security

Product

AI-driven email security platform by Kaseya providing automated phishing defense for Microsoft 365 and Google.

Cloud-native email security for Microsoft 365 and Google Workspace using relationship analytics to stop spear phishing and BEC.

Website

Headquarters

Reston, Virginia

Waltham, Massachusetts

Company size

51-200 employees

Founded

2014

2015

Pricing details

Source updated

Oct 29, 2026

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