# User impersonation action is set to move to Quarantine

User impersonation protection can detect spoofing of your sensitive users. Move messages that are caught using user impersonation detection to Quarantine.

Source: https://maester.dev/docs/tests/ORCA.223

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<div class="test-byline"><div class="test-byline-avatars"><a class="test-byline-avatar test-byline-avatar--author" href="/contributors/soulemike" title="Michael Soule · Original author"><img src="https://github.com/soulemike.png" alt="Michael Soule" width="28" height="28" loading="lazy" decoding="async" /></a></div><div class="test-byline-meta"><span class="test-byline-text">Contributed by <a href="/contributors/soulemike">Michael Soule</a></span><a class="test-byline-link" href="/contributors">All contributors →</a></div></div>

<p class="test-part">Part of <a href="/docs/tests/orca">ORCA</a> · Defender · Anti-phishing · <a href="/docs/tests">All checks</a></p>

```powershell title="Run this check"
Invoke-Maester -TestId ORCA.223
```

## Overview

User impersonation protection can detect spoofing of your sensitive users. Move messages that are caught using user impersonation detection to Quarantine.

#### Remediation action

Configure user impersonation action to Quarantine.

#### Related Links

* [Microsoft 365 Defender Portal - Anti-phishing](https://security.microsoft.com/antiphishing)
* [Recommended settings for EOP and Microsoft Defender for Office 365](https://aka.ms/orca-atpp-docs-7)

## Details

<details>
<summary>Every attribute of this check</summary>

| Field | Value |
| --- | --- |
| Test ID | ORCA.223 |
| Severity | Medium |
| Suite | ORCA |
| Product | Defender |
| Related products | Exchange Online |
| Feature | Anti-phishing |
| Area | Email and collaboration protection |
| Resource type | Policy |
| User impact | Low |
| Implementation cost | Low |
| MITRE ATT&CK | T1566 Phishing, T1684.001 Impersonation |
| Supports controls | nist-800-53-r5:SI-8 |
| PowerShell test | [Test-ORCA223](https://github.com/maester365/maester/blob/main/tests/orca/Test.ORCA.223.ps1) |
| Services | ExchangeOnline |
| Compatible licenses | ATP_ENTERPRISE |

</details>

## Source

- Test: [`tests/orca/Test.ORCA.223.ps1`](https://github.com/maester365/maester/blob/main/tests/orca/Test.ORCA.223.ps1)
- Documentation: [`tests/orca/Test.ORCA.223.md`](https://github.com/maester365/maester/blob/main/tests/orca/Test.ORCA.223.md)