iperf - A TCP, UDP, and SCTP network bandwidth measurement tool
Microsoft BitLocker - BitLocker is a full disk encryption feature included with Windows Vista and later.
JPerf - This project gives a better UI and new functionalities to the initial JPerf 1.
Paubox - Paubox provides HIPAA compliant email encryption without the hassle of extra steps.
NetStress - NetStress is a user-friendly benchmarking tool that is mostly used by networking professionals to measure the network performance of both wired and wireless connections.
OpenSSH - OpenSSH is a free version of the SSH connectivity tools that technical users rely on.