> For the complete documentation index, see [llms.txt](https://docs.parallels.com/landing/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.parallels.com/landing/pdfm-ug/parallels-desktop-for-mac-27-users-guide/parallels-desktop-preferences-and-virtual-machine-settings/parallels-desktop-preferences/security-preferences.md).

# Security Preferences

Use **Security** Preferences to set password requirements.

{% hint style="info" %}
**Note**: This tab was deprecated in Parallels Desktop for Mac 27.
{% endhint %}

To open these preferences, choose **Parallels Desktop** > **Preferences**, then click **Security**.

<figure><img src="https://content.gitbook.com/content/hVLphlNWs82OS4cXatMx/blobs/wCTPJpwOOEj3ASYFn80A/Screenshot%202024-01-19%20at%2012.43.01.png" alt="" width="561"><figcaption></figcaption></figure>

| Option                                                                                      | Description                                                                                                                                                                                                                                                                                                      |
| ------------------------------------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| **Require password to**                                                                     | <p>In this section, you can select the actions for which Parallels Desktop will require an administrator password.</p><p><strong>Note:</strong> <strong>Open Parallels Desktop preferences</strong> is available in Parallels Desktop for Mac Pro and Business Editions only.</p>                                |
| **Custom password** (available in Parallels Desktop for Mac Pro and Business Editions only) | <p>You can create a custom password to restrict the above operations. Select the operations you want to protect with this password, click <strong>Turn On,</strong> and specify the password.</p><p>To change or turn off the password, click <strong>Change Password</strong> or <strong>Turn Off</strong>.</p> |


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://docs.parallels.com/landing/pdfm-ug/parallels-desktop-for-mac-27-users-guide/parallels-desktop-preferences-and-virtual-machine-settings/parallels-desktop-preferences/security-preferences.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.
