This is a prime example of the importance of checking to see which devices are logged in to your Amazon account. Your account’s security could have been compromised, and now that person has access. Fortunately, you can remove an unauthorized device by following these steps: 1. Go to the “Devices” section of your Amazon account. 2. Locate the unknown registered device. 3. Select that device and tap “Deregister.” If you’ve found a device connected to your account that isn’t yours, it’s a good idea to change your Amazon password after deregistering it. Doing so will help to maintain the security of your account.