CultofMac reader, Ashwin, asks,
“I wanted to know if there is way to use an USB stick as a password for my Mac. One of my friends has it for his Windows (machine). So, is there a way to do it for a Mac?”

The concept here is fairly simple: you install a program on your Mac, and then use it to take any USB stick you have and turn it into a secure password device for your Mac.

There are plenty of reasons to want to encrypt the data on a hard drive. Before OS X Mountain Lion, Apple provided tools to do this with the startup drive, via FileVault. Starting right now, however, with OS X 10.8, you can encrypt almost any external drive you like, including flash drives (also known as thumb drives in my neck of the woods). Here’s how.