Anthropic Excessive Chat Snapshot Creation

Last updated 4 days ago on 2026-09-21
Created 9 days ago on 2026-09-16

About

Detects an unusually high number of successful Claude chat snapshot creation events for the same user email within a rolling 24-hour window. Chat snapshots package conversation content into shareable exports; sustained creation volume can indicate staging of organizational chat data for exfiltration via Anthropic's web service or automated bulk export of sensitive prompts and responses.
Tags
Domain: GenAIPlatform: AnthropicData Source: Anthropic Audit LogsUse Case: Threat DetectionUse Case: UEBARule Type: ES|QLTactic: ExfiltrationLanguage: esql
Severity
medium
Risk Score
47
MITRE ATT&CK™

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

False Positive Examples
Power users, trainers, or documentation owners who intentionally snapshot many chats for sharing, archival, or handoff workflows can exceed the threshold without malicious intent.
License
Elastic License v2(external, opens in a new tab or window)

Definition

Integration Pack
Prebuilt Security Detection Rules
Related Integrations

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

Query
text code block:
from logs-anthropic.audit-* | where data_stream.dataset == "anthropic.audit" and mv_contains(event.category, "file") and event.action == "claude_chat_snapshot_created" and event.outcome == "success" and user.email is not null | stats Esql.event_count = count(*), Esql.event_id_values = values(event.id), Esql.anthropic_audit_claude_chat_snapshot_id_values = values(anthropic.audit.claude_chat_snapshot_id), Esql.anthropic_audit_claude_chat_id_values = values(anthropic.audit.claude_chat_id), Esql.source_ip_values = values(source.ip), Esql.user_agent_original_values = values(user_agent.original), Esql.anthropic_audit_actor_type_values = values(anthropic.audit.actor.type), Esql.organization_id_values = values(organization.id), Esql.user_id_values = values(user.id), Esql.timestamp_first_seen = min(@timestamp), Esql.timestamp_last_seen = max(@timestamp) by user.email | where Esql.event_count >= 10 | keep user.email, Esql.*

Install detection rules in Elastic Security

Detect Anthropic Excessive Chat Snapshot Creation 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).