Hmm, I wonder about that. I've been watching setup videos from other Roku users on YT, and I am annoyed with the various requirements, such as having to have a Roku account and providing a payment option, even if you never intend to purchase movies with the device. This leads me to believe that Roku may be storing your streaming service's login and password on your Roku account and not necessarily the streaming device(s).
Are all other streaming devices like this? I guess I worked far too long with classified information on isolated networks to be comfortable providing whatever personal and financial information is requested for a service, particularly when such information doesn't appear to be necessarily needed.
Looks like it is time for me to go yell at some kids to get off our lawn ...