How Trezor login typically works
Many web services offer login flows that use a hardware wallet for authentication or transaction confirmation. The general flow is:
- User visits a service and initiates a sign-in or authorize action.
- The service prompts the browser to request a cryptographic signature from the Trezor device via Trezor Bridge or WebUSB.
- The user confirms the action on the physical device screen (always verify details shown).
- The signed payload is returned to the website, which verifies it and completes the login or authorization.
Safety first: avoid phishing
Before you sign anything, verify:
- The page URL is correct — check the domain carefully.
- The full text of the message or transaction is what you expect.
- Your device screen shows matching details and asks for confirmation.
Common protections
- Confirm every signature on the Trezor screen; do not rely only on the browser text.
- Use unique accounts per service where practical.
- Log out from services after use and avoid auto-login on shared machines.
What to do if something looks wrong
- Cancel the signature request on the device.
- Disconnect the device and close the browser tab.
- Verify the service's URL and contact their support if needed.
Note: This page describes general patterns for "Trezor login" flows. Exact behavior depends on the service and how it integrates hardware wallet authentication.
Developer note
If you're implementing a Trezor-based login, use standard challenge-response signatures, include nonce/timestamp to avoid replay attacks, and present clear messages for users to confirm on-device.
Example (conceptual)
// PSEUDOCODE (conceptual only)
// server: create challenge = random();
// server: send challenge to client
// client: request device to sign challenge
// device: user confirms, returns signature
// server: verify(signature, userPubKey)
Final notes
Always prefer official integrations and validate any third-party service before granting access. This page is informational and not an official Trezor product page.