# Enterprise applications have owners

Enterprise applications without owners become orphaned assets that threat actors can exploit.

Source: https://maester.dev/docs/tests/ZTA.24518

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## Overview

Enterprise applications without owners become orphaned assets that threat actors can exploit. These applications often retain elevated permissions and access to sensitive resources while lacking proper oversight and security governance.

Applications without owners create blind spots in security monitoring where attackers can establish persistence by leveraging existing application permissions to access data or create backdoor accounts. The absence of ownership also prevents proper access reviews and permission audits, allowing applications with excessive permissions or outdated configurations to remain unmanaged.

Assigning owners enables effective application lifecycle management and ensures proper security oversight.

## Remediation

- [Assign enterprise application owners](https://learn.microsoft.com/entra/identity/enterprise-apps/assign-app-owners?wt.mc_id=zerotrustrecommendations_automation_content_cnl_csasci)

## Run it

The check runs as part of the whole assessment, with the ZeroTrustAssessment module installed:

```powershell
Install-Module ZeroTrustAssessment -Scope CurrentUser
Connect-Maester
Invoke-Maester -Pack ZTA -SkipBuiltIn
```

Leave out `-SkipBuiltIn` to run Maester's own checks in the same run.

<details>
<summary>About this check</summary>

| | |
| --- | --- |
| Severity | Medium |
| Effort to fix | Medium |
| Impact on users | Low |
| Pillar | Identity |
| Category | Application management |
| Product | [Entra ID](/docs/tests/products/entra) |
| Feature | Applications |
| Area | Applications and workload identities |
| Licence | Free |
| Tenant | Workforce |

Product, feature, area and ATT&CK are Maester's: the assessment does not record them, so Maester keeps them in the pack's `taxonomy.json`.

</details>

<p class="mt-ms-note not-content"><svg class="mt-ms-note__logo" viewBox="0 0 21 21" aria-hidden="true"><rect width="10" height="10" fill="#f25022"/><rect x="11" width="10" height="10" fill="#7fba00"/><rect y="11" width="10" height="10" fill="#00a4ef"/><rect x="11" y="11" width="10" height="10" fill="#ffb900"/></svg><span>A Microsoft check, part of the <a href="/docs/tests/packs/zero-trust-assessment">Zero Trust Assessment</a> pack. Text from ZeroTrustAssessment 3.1.0, © Microsoft, <a href="/docs/tests/packs/zero-trust-assessment#licence">MIT licence</a>.</span></p>
