pfSense - pfSense is a free and open source firewall and router that also features unified threat management, load balancing, multi WAN, and more
Armor - Armor offers cloud security through integrated managed cloud or managed security as a service for public cloud or private cloud.
Zentyal - Linux directory, domain, mail, gateway and infrastructure server for SMBs.
Zix - Leader in email #security | Easy-to-use solutions for #encryption, DLP, #advancedthreatprotection, archiving and BYOD security | https://t.co/7V5jQ5UfAo
NethServer - NethServer is an operating system for Linux enthusiasts, designed for small offices and medium...
Microsoft BitLocker - BitLocker is a full disk encryption feature included with Windows Vista and later.