File Encryption
TrueCrypt is a software system for establishing and maintaining an on-the-fly-encrypted drive. On-the-fly encryption means that data are automatically encrypted or decrypted right before they are loaded or saved, without any user intervention. No data stored on an encrypted volume can be read (decrypted) without using the correct password or correct encryption key ."Traveler mode" offers portable encryption (ie)to secure your data on USB devices or smart cards.
It takes some time to learn how to use TrueCrypt,here is the Beginner's Tutorial
AxCrypt is the open source file encryption software for Windows. It integrates seamlessly with Windows to compress, encrypt, decrypt, store, send and work with individual files.
AxCrypt is great for protecting your documents such as private letters, correspondence, job information, medical information, financial details stored on a local hard disk
ALARM
LAlarm is free laptop alarm security software. LAlarm sounds an alarm when a laptop is in danger of being stolen or losing data, and it can recover and destroy data if the laptop is stolen. LAlarm consists of seven alarms and other security functions designed to protect laptops, sensitive data and laptop users.
free for personal use
learn how to use using the included help option
learn how to use using the included help option
Lockdown
BananaScreen will automatically lock your computer when you move away from it.When you come back, BananScreen unlocks your computer in less time than it would take to enter your password.With a simple webcam, facial features are captured to build a statistical representation of the face. No picture is stored on your harddrive (or anywhere else) but only your face model (binary format).
