LAN Messenger - LAN Messenger is a decentralized UDP IM-style chat client which supports usernames...
Microsoft BitLocker - BitLocker is a full disk encryption feature included with Windows Vista and later.
MyChat - Secure instant messenger for any network
Paubox - Paubox provides HIPAA compliant email encryption without the hassle of extra steps.
BORGChat - BORGChat is a LAN messaging software program.
OpenSSH - OpenSSH is a free version of the SSH connectivity tools that technical users rely on.