You can lock a directory with a password by using the cPanel
Password Protected Directories Option.
1. Log into your cPanel account.
2. In the
Files section, click on
Directory Privacy Icon.
3. Click the icon to open a folder.
4. Click on the name of the directory you want to protect by password.
5. Under
Security Settings, check the box next to the
Password protect this directory and enter a name for the protected directory like
Password Protected Area. Then click the
Save button.
6. Now click on the
Go back button.
7. Scroll down the page and under
Create User fill in the username and password fields or use the Password Generator option to generate a new random password and copy the user/password to a notepad. You will need this when you want to open your password-protected directory and click on the
Save button.

Now, should you try to open your password-protected directory in your browser through the URL www.example.com/myfolder, which is already password protected, your browser will prompt you to enter username and password.
