Vaxsii, using the email address that's displayed on your Roku device under Settings->System->About, log into your Roku account at https://my.roku.com and scroll down to "My streaming devices & TVs". Are there any you don't recognize? Merely changing your account password wouldn't affect devices already linked to your account.
Unfortunately every time I have looked there are no other devices. I'm really not sure how any programs would be associated with my account at this point, it's the only device I've logged into it with, with this being the first and only Roku I've ever had since I got it three years ago
