↳ GitHub sourceAnalytics ruleHigh

Unauthenticated API Endpoint with Sensitive Data

Description

Detects internet-facing API endpoints with no authentication that handle sensitive data classifications (PII, Financial, PHI, Confidential). Uses StratoSecure_ApiInventory_CL from Phase 6 API inventory discovery.
Rule type
Scheduled
Version
1.0.0
Declared status
Available
Query frequency
6h
Query period
375m
Trigger
gt 0

Declared MITRE coverage

Declared sources

Metadata from the source file. No dependencies inferred from KQL.

Connectors

Data types

KQL query

Original query, unchanged.

let sensitiveDataClasses = dynamic(["PII", "Financial", "PHI", "Confidential"]);
StratoSecure_ApiInventory_CL
    | where TimeGenerated >= ago(6h)
    | where InternetExposure == true
    | where AuthType =~ "none" or isempty(AuthType)
    | where DataClassification has_any (sensitiveDataClasses)
    | summarize EndpointCount = count(), Endpoints = make_set(Path, 50),
        Methods = make_set(Method), DataClasses = make_set(DataClassification),
        EndTime = max(TimeGenerated)
        by ApplicationId = ServiceName, StraTenantId
    | project TimeGenerated = EndTime, ApplicationId, StraTenantId,
        EndpointCount, Endpoints, Methods, DataClasses

Declared entities

CloudApplication

Related content

Links established from declared identifiers and solution manifests.

Source provenance

GitHub

Displayed values come from files in Azure/Azure-Sentinel. They describe the published template, not your workspace configuration.

Source identifier
479bc6ef-ecb3-496f-9a2a-38c9635d77d3
Additional source files 2Solutions/StratoSecure/Analytic Rules/S9_UnauthenticatedAPI_Internet.yamlsource ↗Solutions/StratoSecure/Data/Solution_StratoSecure.jsonsolution-membership ↗
GSTEP / CATALOG TRACKING

Added to catalog : 16 Sept 2026 · 05:49 UTC
Last change observed : 16 Sept 2026 · 05:49 UTC

GSTEP sync dates, separate from the source content’s publication dates.