Two brothers took a security idea from the intelligence world and put it inside everyday email. Their wager: a file should carry its own rules, wherever it travels.
The Florida email-security company found a way to sell the cloud through people. Its $275 million sale tells a story about spam filters, small IT shops, and the price of being useful.
Paubox built a healthcare security business around a simple observation: if protection depends on remembering a button, somebody will forget. Its answer was to make the ordinary inbox do the safe thing automatically.
Most security software asks people to change. Echoworx built its business around changing the route instead - and one insurer's 3% TLS gap shows why that matters.
Trustifi is a cloud-based, AI-driven email security company that protects organizations from phishing, business email compromise, data leaks and compliance failures. Its one-stack platform pairs Inbound Shield threat detection with Outbound Shield one-click encryption and One-Click Compliance, making enterprise-grade email protection simple enough for small businesses and the managed service providers that serve them. Founded by Rom Hendler and Idan Udi Edry, the company raised a $25M Series A in 2025 to scale its channel-first, AI-powered platform.