At the risk of delving into the providence of government and corporate networks let's talk about encryption (crypto).
Encrypted data is very difficult to crack. Malware such as Cryptolocker is so troublesome because of this. It's also why wikileaks had no fear of their files being accessed unless they divulged the password. Yes, it's that difficult to crack.
So if the thought of that level of security seems like something you would want you have arrived at the right place. Imagine not having to worry if your laptop, usb drive, or phone were stollen. That is the peace of mind that encryption provides.