> 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/external-saas-file-sharing-activity.md).
# External SaaS file-sharing activity
### Synopsis
| Field | Value |
| -------------------- | --------------------------------------------------------------------------------------------------------------------------------- |
| Activation Period | 14 Days |
| Training Period | 30 Days |
| Test Period | 10 Minutes |
| Deduplication Period | 1 Day |
| Required Data | Requires one of the following data sources:
Box Audit Log OR DropBox OR Google Workspace Audit Logs OR Office 365 Audit
|
| Detection Modules | Identity Threat Module, SaaS Threat Detection |
| Detector Tags | Data Detection & Response |
| ATT\&CK Tactic | Collection (TA0009) |
| ATT\&CK Technique | Data from Cloud Storage (T1530) |
| Severity | Informational |
### Description
A user shared files from within a SaaS service to an external domain.
### Attacker's Goals
An attacker may share files from a SaaS service to exfiltrate sensitive data.
### Investigative actions
* Check for signs of account compromise, such as abnormal login activity or unusual behavior.
* Determine if the files are shared with users outside the organization and if the recipients are familiar.
* Review the files that were shared to determine if they contain sensitive data.
* Analyze the file types that were shared.
* Monitor the account for any further suspicious actions.
### Variations
SaaS external file sharing to an abnormal domain
**Synopsis**
| Field | Value |
| ----------------- | ------------------------------- |
| ATT\&CK Tactic | Collection (TA0009) |
| ATT\&CK Technique | Data from Cloud Storage (T1530) |
| Severity | Low |
**Description**
A user shared files to an external domain, which the organization does not typically share files with.
**Attacker's Goals**
An attacker may share files from a SaaS service to exfiltrate sensitive data.
**Investigative actions**
* Check for signs of account compromise, such as abnormal login activity or unusual behavior.
* Determine if the files are shared with users outside the organization and if the recipients are familiar.
* Review the files that were shared to determine if they contain sensitive data.
* Analyze the file types that were shared.
* Monitor the account for any further suspicious actions.
---
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