This is my first review - and no, I'm not the developer nor his brother-in-law. I just liked this app enough to write a review.

I tried a couple of free apps but they didn't do quite what I wanted without a lot of futzing around (or at all), usually with a clumsy un-Mac-like interface.

However, Espionage (not the most appropriate name in the world, BTW) does a good job of encrypting/decrypting folders quickly and simply, plus it password protects other programs. I use it to password-protect Mail - an unexpected feature that I really appreciate on a laptop.

The price is a bit steep but not excessive, especially given what it does for my security, and the developer seems to actively support his product, unlike some other, older apps out there. All in all, I'm pleased with the program and consider it money well spent.