Always encrypt your sensitive data, especially if is it stored on external hard drives or flash drives.
This video shows how to encrypt your hard drive in Linux. Using this method you can encrypt a separate partition, a whole hard drive or just your USB stick.
I personally use the most LUKS and dm-crypt encryption. I believe it is a simple and reliable way to protect your data.
BTW, If you like the theme, I showed it here
These are the commands shown in the…