OpenAI ChatGPT Enterprise High File Download Activity

Last updated 8 days ago on 2026-10-09
Created 11 days ago on 2026-10-06

About

Detects a high number of ChatGPT Enterprise file download audit events for the same user within a rolling 24-hour lookback. Bulk downloads can indicate staging of conversation attachments or workspace files for exfiltration.
Tags
Domain: GenAIPlatform: OpenAIData Source: OpenAI ChatGPT EnterpriseService: OpenAI ChatGPT EnterpriseUse Case: Threat DetectionRule Type: ES|QLTactic: ExfiltrationMitre Atlas: AML.T0025Language: esql
Severity
medium
Risk Score
47
MITRE ATT&CK™

Exfiltration (TA0010)(external, opens in a new tab or window)

False Positive Examples
Users downloading many attachments during legitimate research or migration work.
License
Elastic License v2(external, opens in a new tab or window)

Definition

Integration Pack
Prebuilt Security Detection Rules
Related Integrations

openai_chatgpt_enterprise(external, opens in a new tab or window)

Query
text code block:
from logs-openai_chatgpt_enterprise.audit_log-* | where data_stream.dataset == "openai_chatgpt_enterprise.audit_log" and event.action == "file_download" and user.id is not null | stats Esql.event_count = count(*), Esql.file_id_values = values(openai_chatgpt_enterprise.audit_log.action_data.file_id), Esql.file_format_values = values(openai_chatgpt_enterprise.audit_log.action_data.file_format), Esql.source_ip_values = values(source.ip), Esql.timestamp_first_seen = min(@timestamp), Esql.timestamp_last_seen = max(@timestamp) by user.id, user.email | where Esql.event_count >= 30 | keep user.id, user.email, Esql.*

Install detection rules in Elastic Security

Detect OpenAI ChatGPT Enterprise High File Download Activity in the Elastic Security detection engine by installing this rule into your Elastic Stack.

To setup this rule, check out the installation guide for Prebuilt Security Detection Rules(external, opens in a new tab or window).