> 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/multiple-mail-items-were-accessed-in-a-short-period-of-time.md).
# Multiple mail items were accessed in a short period of time
### Synopsis
| Field | Value |
| -------------------- | ----------------------------------------------------- |
| Activation Period | 14 Days |
| Training Period | 30 Days |
| Test Period | 1 Hour |
| Deduplication Period | 1 Day |
| Required Data | Office 365 Audit |
| Detection Modules | Identity Threat Module, Email |
| Detector Tags | Extortion |
| ATT\&CK Tactic | Collection (TA0009) |
| ATT\&CK Technique | Email Collection: Remote Email Collection (T1114.002) |
| Severity | Informational |
### Description
A single caller IP read mail items from a single mailbox an unusually high number of times within a short time window.
### Attacker's Goals
An adversary may rapidly access multiple mail items within a short period of time, which can aid in the bulk exfiltration of sensitive email content from a compromised mailbox.
### Investigative actions
* Review the sessions originated from the caller IP address.
* Inspect the user for fresh OAuth grants, new inbox rules, MFA enrolment changes and anomalous logins.
* Check the IP reputation and revoke active sessions for the user.
### Variations
Multiple mail items were accessed in a short period of time with anomalous properties
**Synopsis**
| Field | Value |
| ----------------- | ----------------------------------------------------- |
| ATT\&CK Tactic | Collection (TA0009) |
| ATT\&CK Technique | Email Collection: Remote Email Collection (T1114.002) |
| Severity | Low |
**Description**
A single caller IP read mail items from a single mailbox at an unusually high rate, and the IP address contributed additional anomaly signals (e.g., unmanaged or risky caller IP, anomalous country or ASN for this user).
**Attacker's Goals**
An adversary may rapidly access multiple mail items within a short period of time, which can aid in the bulk exfiltration of sensitive email content from a compromised mailbox.
**Investigative actions**
* Review the sessions originated from the caller IP address.
* Inspect the user for fresh OAuth grants, new inbox rules, MFA enrolment changes and anomalous logins.
* Check the IP reputation and revoke active sessions for the user.
---
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