Check Point Firewall Software Blade - Check Point delivers the best security solutions withthe right architecture to prevent attacks in allof yourenvironments.
Microsoft BitLocker - BitLocker is a full disk encryption feature included with Windows Vista and later.
pfSense - pfSense is a free and open source firewall and router that also features unified threat management, load balancing, multi WAN, and more
Paubox - Paubox provides HIPAA compliant email encryption without the hassle of extra steps.
ClearOS - A very good alternative for Windows Server, for free
OpenSSH - OpenSSH is a free version of the SSH connectivity tools that technical users rely on.