There are two primary ways to utilize this service to access your account remotely: 1. The QR Code Method (Fastest)
If you have 2FA enabled (which is highly recommended via the Samsung Security settings), the remote sign-in process handles the verification seamlessly through your "trusted device." Troubleshooting Common Issues signin.samsung.com/key/
If you can find an (e.g., a public Samsung support page about security keys), share it and I can analyze that directly. There are two primary ways to utilize this