QR codes are by their nature very public. Password protection is a means of
allowing only those people who have the QR code's password access to its
contents. For example, you have made a video that you would like only your
friends and family to see, only after entering a valid password would the
browser be directed to your video. Another use is to allow your customers to
view marketing material, product releases, research, and so forth that is not
available to the general public.
How it works
The password protected QR code contains a link to a webpage that asks the user
to enter a password. Once the password is validated, the user's browser is
redirected to actual link that is being protected.
We've recently added password protection to URL and YouTube type QR codes and is
available to registered users. Passwords are chosen by you when QR codes are
created. The passwords can be changed from within the Manage codes console.