security - VBA password protection: how it works? is it secure? are there any alternatives?

Question

In case one wants to protect VBA applications to make trial(demo) versions and not to expose the scripts, how secure the built in password protection is? Are there any alternatives?

Edit: I'm asking about Excel VBA here.

Answer 1

Your password security is going to depend largely upon the version of office used. All other Office solutions prior to 2007 can be cracked. Office 2007 requires brute forcing the password. The default encryption mechanism is 128 bit AES.

This means the higher the complexity of the password, the harder to crack. IE - Numbers, special characters, mixing case, etc.