This means that your passwords are not as bulletproof as they might be, so it is best if you stick to generating only serial keys. You can also use it to create passwords, yet, since the app is designed to create mainly serial keys, it does not support inserting special characters. The utility packs a straightforward interface that makes it easy for you to focus on generating your serial keys. So when it comes to protecting it with a serial key, you'd better make sure it is a strong one that cannot be broken. Software developers know how much hard work goes into creating a functional application.