> For the complete documentation index, see [llms.txt](https://help.iodd.kr/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.iodd.kr/aes256-encryption-mini-pro-st-lk/admin/user-management.md).

# User Management

Administrators have the authority to create multiple user profiles, each with distinct access rights to the encrypted drive.

### Administrator Authentication

1. Access the menu and navigate to: **\[Encryption] - \[User]**.

   <figure><img src="/files/mGXhA1m0N4uvUstbHC4R" alt="Encryption User Menu"><figcaption><p>Navigate to the User settings under the Encryption menu.</p></figcaption></figure>
2. Enter **0** followed by the **Admin Password**.

{% hint style="info" %}
The prefix `0` identifies the input as an administrative login.
{% endhint %}

<figure><img src="/files/OfN0ANOKGSv21xP3pnwj" alt="Admin Password Entry"><figcaption><p>Example: 0 + [Admin Password]</p></figcaption></figure>

3. Select the specific user index (1–4) you wish to manage.

   <figure><img src="/files/kAIYI8crtg95sqChIkE1" alt="User Selection"><figcaption><p>Choose one of the four available user slots.</p></figcaption></figure>

***

### User Permissions and Password Setup

Configure the following options and set a password for the selected user:

<figure><img src="/files/MOQXYiW23wrywwT9kJOM" alt="User Permission Settings"><figcaption><p>Setting individual user rights.</p></figcaption></figure>

{% hint style="info" %}
**Understanding User Options**

* **Read Only**: The user can access files but cannot write, modify, or delete data on the drive.
* **User Change**: Permits the user to change their own password without administrative intervention.
* **User Delete**: Allows the user to delete their own account/password from the device.
  {% endhint %}

***

### Saving Changes

After configuring the user profile, you must confirm the settings.

<figure><img src="/files/gKXatS6MwgdcEzgxqx7h" alt="Save Users Option"><figcaption><p>Finalizing the user configuration.</p></figcaption></figure>

{% hint style="warning" %}
**Persistence of Settings** You must select **\[Save users]** to commit the changes. If you exit the menu without saving, all modifications will be discarded.
{% endhint %}

***

### Password Structure for Users (1-4)

To log in as a specific user, the password must be prefixed with the corresponding **User Identification Digit**.

{% hint style="info" %}
**Login Format** **\[User ID (1\~4)] + \[User Password (Up to 37 digits)]**

* If **User 1** sets the password to `55447788`, the login code is **1**55447788.
* If **User 4** sets the password to `55447788`, the login code is **4**55447788.
  {% endhint %}

{% hint style="info" %}
On supported **ST400** and **MINI PRO** firmware, the **User 4 PIN** can be used as the **Duress PIN** to show only a prepared `vhd4.vhd` volume on the PC. Refer to: [Duress PIN](/aes256-encryption-mini-pro-st-lk/admin/duress-pin.md)
{% endhint %}

***

### Advanced User Operations

For more details on specific encryption menus available to Users 1–4, please refer to: [User Encryption Menu](/user/user-menu-encryption.md)