# Microsoft Intune service must enforce the limit of three consecutive invalid login attempts by a user during a 15-minute time period

Microsoft Entra smart lockout, which protects Intune sign-ins, locks an account after three failed sign-ins for at least 15 minutes.

Source: https://maester.dev/docs/tests/DISA.V-267314

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<div class="test-byline"><div class="test-byline-avatars"><a class="test-byline-avatar test-byline-avatar--author" href="/contributors/merill" title="Merill Fernando · Original author"><img src="https://github.com/merill.png" alt="Merill Fernando" 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/merill">Merill Fernando</a></span><a class="test-byline-link" href="/contributors">All contributors →</a></div></div>

<p class="test-part">Part of <a href="/docs/tests/disa">DISA</a> · Entra ID · Password protection · <a href="/docs/tests">All checks</a></p>

```powershell title="Run this check"
Invoke-Maester -TestId DISA.V-267314
```

## Overview

Microsoft Entra smart lockout, which protects Intune sign-ins, locks an account after three failed sign-ins for at least 15 minutes. (DISA Microsoft Intune MDM Service Desktop STIG, V-267314, CAT II).

Intune sign-ins are handled by Microsoft Entra ID, so the lockout rule is checked there. A low threshold with a long lockout limits online password guessing.

This test runs the same check as [CIS.M365.5.2.3.8](https://maester.dev/docs/tests/CIS.M365.5.2.3.8) with DISA's values: a lockout threshold of 3 or fewer and a lockout duration of at least 900 seconds.

#### Remediation action

1. In the [Microsoft Entra admin center](https://entra.microsoft.com), go to **Entra ID** > **[Authentication methods](https://entra.microsoft.com/#view/Microsoft_AAD_IAM/AuthenticationMethodsMenuBlade/~/PasswordProtection)** > **Password protection**.
2. Set **Lockout threshold** to **3** and **Lockout duration in seconds** to **900** or more.
3. Select **Save**.

#### Related links

* [DISA Microsoft Intune MDM Service Desktop STIG: V-267314](https://cyber.trackr.live/stig/Intune_Service_Desktop/1/1/V-267314)
* [Protect user accounts from attacks with Microsoft Entra smart lockout](https://learn.microsoft.com/entra/identity/authentication/howto-password-smart-lockout)

## Details

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

| Field | Value |
| --- | --- |
| Test ID | DISA.V-267314 |
| Severity | Medium |
| Suite | DISA |
| Product | Entra ID |
| Feature | Password protection |
| Area | Authentication |
| Resource type | Tenant |
| User impact | Low |
| Implementation cost | Low |
| MITRE ATT&CK | T1110.001 Password Guessing, T1110.003 Password Spraying |
| Supports benchmark | DISA Microsoft Intune MDM Service Desktop STIG (version V1R1), requirement V-267314 |
| Supports controls | disa-stig-intune-desktop:V-267314, nist-800-53-r5:AC-7 |
| PowerShell test | [Test-MtDisaIntuneDesktopLockout](https://github.com/maester365/maester/blob/main/tests/disa/Test.DISA.V-267314.ps1) |
| Services | Graph |

</details>

## Source

- Test: [`tests/disa/Test.DISA.V-267314.ps1`](https://github.com/maester365/maester/blob/main/tests/disa/Test.DISA.V-267314.ps1)
- Documentation: [`tests/disa/Test.DISA.V-267314.md`](https://github.com/maester365/maester/blob/main/tests/disa/Test.DISA.V-267314.md)