Sinch ID Authentication using a Security Key

Shahzad_Ismail — Wed, 25 Mar 2026 14:25:56 GMT

A security key uses a hardware device (like a YubiKey) or your platform's built-in authenticator (like Touch ID or Windows Hello) to verify your identity. Security keys follow the FIDO2/WebAuthn standard.

To set up a security key, take the following steps:

Sign in to Sinch ID and go to Sign-in & Security:

In the Authentication Methods (MFA) section, under Security key, click Setup.
An intro screen explains what security keys are:

Click Use security key to continue.
Your browser shows a WebAuthn dialog. Follow the prompts to insert and tap your hardware key, or use your platform authenticator (Touch ID, Windows Hello, etc.).
Give your security key a name so you can identify it later:

Click Continue.
A confirmation message is displayed informing you that the security key was registered.
If this is your first MFA method, Sinch ID shows a recovery code. Copy or write it down and store it somewhere safe.

Note: The recovery code only appears when you enrol your first MFA method. If you already have another method enabled, this step is skipped.

A confirmation message is displayed informing you that the setup is complete. You can safely close this tab.

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Sinch ID Authentication using a Security Key