An unusual cloud identity was granted permissions to a BigQuery resource

Cortex XSIAM Analytics Alert Reference by Alert name

Product

Cortex XSIAM

Last date published

2026-01-04

Activation Period	14 Days
Training Period	30 Days
Test Period	N/A (single event)
Deduplication Period	1 Day
Required Data	Requires: Gcp Audit Log
Detection Modules	Cloud
Detector Tags	Data Detection & Response
ATT&CK Tactic	Exfiltration (TA0010) Defense Evasion (TA0005)
ATT&CK Technique	Transfer Data to Cloud Account (T1537) Modify Cloud Compute Infrastructure (T1578)
Severity	Informational

An unusual cloud identity was granted permissions to a BigQuery table or dataset.

Exfiltrate sensitive data that resides inside BigQuery tables or datasets.

Check if {cloud_best_identity_match} intended to change BigQuery resource policy.
Verify if the affected tables or datasets did not contain any sensitive information.

ATT&CK Tactic

ATT&CK Technique

Severity

Informational

An unusual cloud identity was granted permissions to a BigQuery table or dataset.

Exfiltrate sensitive data that resides inside BigQuery tables or datasets.

Check if {cloud_best_identity_match} intended to change BigQuery resource policy.
Verify if the affected tables or datasets did not contain any sensitive information.