> For the complete documentation index, see [llms.txt](https://cortex-docs.paloaltonetworks.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://cortex-docs.paloaltonetworks.com/analytics-alerts/alerts-by-name/exchange-mailbox-delegation-permissions-added.md).
# Exchange mailbox delegation permissions added
### Synopsis
| Field | Value |
| -------------------- | ----------------------------------------------------------------------- |
| Activation Period | 14 Days |
| Training Period | 30 Days |
| Test Period | 4 Hours |
| Deduplication Period | 1 Day |
| Required Data | Office 365 Audit |
| Detection Modules | Identity Threat Module, Email |
| ATT\&CK Tactic | Persistence (TA0003) |
| ATT\&CK Technique | Account Manipulation: Additional Email Delegate Permissions (T1098.002) |
| Severity | Informational |
### Description
A user added delegation permissions to an Exchange mailbox.
### Attacker's Goals
Add delegation permissions to a mailbox for persistence reasons.
### Investigative actions
* Look for signs that the user account and mailboxes are compromised (e.g. abnormal logins, unusual activity).
* Investigate the IP address associated with the activity.
* Follow further actions done by the account.
* Look for unusual email patterns from the affected mailbox (e.g. unusual email contents).
### Variations
Addition of Exchange mailbox delegation permissions with suspicious characteristics
**Synopsis**
| Field | Value |
| ----------------- | ----------------------------------------------------------------------- |
| ATT\&CK Tactic | Persistence (TA0003) |
| ATT\&CK Technique | Account Manipulation: Additional Email Delegate Permissions (T1098.002) |
| Severity | Low |
**Description**
A user added delegation permissions to an Exchange mailbox.
**Attacker's Goals**
Add delegation permissions to a mailbox for persistence reasons.
**Investigative actions**
* Look for signs that the user account and mailboxes are compromised (e.g. abnormal logins, unusual activity).
* Investigate the IP address associated with the activity.
* Follow further actions done by the account.
* Look for unusual email patterns from the affected mailbox (e.g. unusual email contents).
---
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