Most people have data they don't necessarily want others to see. Some examples of this kind of data are:
- Financial data (Tax returns, bank account info, credit card numbers, etc)
- Usernames and passwords
- Diary or Journal
- E-mail
- Pornography
If your computer is lost or stolen this data is easily available to anyone who picks it up. A windows password will not keep anyone from your data if they possess the machine.
What can you do to protect yourself in a situation like this? One option would be to not keep sensitive data on a computer, especially a portable one. This is definitely a good idea, but not always practical. This is where encryption comes in. There are many different options for encryption, but the best one I have come across is
TrueCrypt.
TrueCrypt can encrypt your files in 2 main ways.
- Encrypted containers
- Encrypted partitions/drives
An encrypted container is a large encrypted virtual hard drive that you can mount as a drive in windows (or linux) and store files on. When this file is not mounted the files are encrypted by a password and can't be retrieved.
Instead of using an encrypted container you can encrypt the entire hard drive. This option will keep everything secure and require a password when you start your computer.