Air Explorer gives you the option to protect your program with a password.

Open the Options Window, check “Request a password when Air Explorer starts” and write the password.

Then, when you open the program, it will require a password.

Keep your password in a safe place. If you lose or forget the password, it can’t be recovered.

You can check more information about more features here:
-Upload and download speed
-How to play cloud storage videos online
-How to manage your clouds recycle bin
-New search feature in Air Explorer