# Non-expiring password user count should be retrievable

Passwords that never expire reduce credential hygiene and increase the blast radius of password theft.

Source: https://maester.dev/docs/tests/AD-USER-03

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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/ad">Active Directory</a> · Active Directory · Users · <a href="/docs/tests">All checks</a></p>

```powershell title="Run this check"
Invoke-Maester -TestId AD-USER-03
```

## Overview

Passwords that never expire reduce credential hygiene and increase the blast radius of password theft. While some service accounts may require non-expiring credentials, they should be rare, controlled, and closely monitored.

#### Control Type

**Detective**

#### Security Recommendation

Minimize the use of non-expiring passwords. Where legacy constraints require them, migrate to managed service accounts, vaulting, or other compensating controls.

#### How the Test Works

This test retrieves Active Directory user data from `Get-MtADDomainState`, filters to enabled users, and counts accounts where `PasswordNeverExpires = $true`. The output includes the count and percentage relative to enabled users.

#### Related Tests

- `Test-MtAdUserDormantEnabledCount`
- `Test-MtAdUserPasswordNotRequiredCount`
- `Test-MtAdUserNeverLoggedInCount`

#### Related links

- [ANSSI Active Directory checkpoints: Accounts with never-expiring passwords](https://www.cert.ssi.gouv.fr/uploads/ad_checklist.html#vuln_dont_expire)

## Details

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

| Field | Value |
| --- | --- |
| Test ID | AD-USER-03 |
| Severity | Info |
| Suite | Active Directory |
| Product | Active Directory |
| Feature | Users |
| Area | Authentication |
| Resource type | User |
| MITRE ATT&CK | T1078.002 Domain Accounts |
| PowerShell test | [Test-MtAdUserPasswordNeverExpiresCount](https://github.com/maester365/maester/blob/main/tests/ad/user/Test.AD-USER-03.ps1) |
| Services | ActiveDirectory |
| Permissions | ActiveDirectory:Ldap:user:ReadProperty |

</details>

## Source

- Test: [`tests/ad/user/Test.AD-USER-03.ps1`](https://github.com/maester365/maester/blob/main/tests/ad/user/Test.AD-USER-03.ps1)
- Documentation: [`tests/ad/user/Test.AD-USER-03.md`](https://github.com/maester365/maester/blob/main/tests/ad/user/Test.AD-USER-03.md)