WinSCP is described by its author as
WinSCP is an open source free SFTP client and FTP client for Windows. Legacy SCP protocol is also supported. Its main function is safe copying of files between a local and a remote computer.
It is a very robust and feature rich FTP client that supports secure file transfer using [...]

TrueCrypt is described by its author as
Free open-source disk encryption software for Windows Vista/XP, Mac OS X, and Linux
TrueCrypt is a feature rich, powerful and reliable software to secure any number of files, folders or even entire drives. It achieves this by creating a ‘virtual encrypted disk’. It is possible to hide most any thing [...]