> For the complete documentation index, see [llms.txt](https://docs.1kosmos.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.1kosmos.com/authentication/passwordless-for-web-apps/authentication-matrix.md).

# Authentication Matrix

The table below outlines the authentication modes supported across different login methods. Availability of each mode depends on how authentication journeys are configured.

***

### Supported Authentication Modes by Login Method

| Login Method                | Single Factor Authentication | Multi-Factor Authentication |
| --------------------------- | ---------------------------- | --------------------------- |
| FIDO Keys                   | ✅                            | ✅                           |
| LiveID                      | ✅                            | ✅                           |
| Behavioral Authentication   | ❌                            | ✅                           |
| PIN                         | ❌                            | ✅                           |
| Service Account Login       | ❌                            | ✅                           |
| Orion Desktop Authenticator | ✅                            | ✅                           |
| Hardware Tokens             | ❌                            | ✅                           |
| QR                          | ✅                            | ✅                           |
| Push                        | ✅                            | ✅                           |

### How to Read This Matrix

* **Single Factor Authentication**\
  Users can authenticate without entering a password, using a single secure method such as biometrics, passkeys, or device-based authentication.
* **Multi-Factor Authentication (MFA)**\
  Users authenticate using a combination of factors, such as password + OTP, biometric + PIN, or device + approval.

#### Important Notes

{% hint style="info" %}
Authentication methods are applied as part of configurable authentication journeys.
{% endhint %}

{% hint style="info" %}
Some methods can be used independently for single factor authentication or combined with other login methods for multi-factor authentication.
{% endhint %}

{% hint style="info" %}
PIN and OTP-based methods (including SMS, Email, Voice, app-generated codes, and hardware tokens) are reserved for use as second factors in two-factor (2FA) or multi-factor (MFA) authentication flows.
{% endhint %}


---

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