↳ GitHub sourceAnalytics ruleHigh

Azure secure score block legacy authentication

Description

'This query searches for most compromising sign-in attempts come from legacy authentication. Older office clients such as Office 2010 do not support modern authentication and use legacy protocols such as IMAP, SMTP, and POP3. Legacy authentication does not support multi-factor authentication (MFA). Even if an MFA policy is configured in your environment, bad actors can bypass these enforcements through legacy protocols.'

Rule type: Scheduled
Version: 1.0.1
Declared status: Available
Query frequency: 6h
Query period: 6h
Trigger: gt 0

Declared MITRE coverage

Declared sources

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

Connectors

SenservaPro

Data types

SenservaPro_CL

KQL query

Original query, unchanged.

SenservaPro_CL
| where ControlName_s == 'AzureSecureScoreBlockLegacyAuthentication'

Declared entities

AccountSecurityGroupAzureResource

Source provenance

GitHub

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

File: Solutions/SenservaPro/Analytic Rules/BlockLegacyAuthentication.yaml ↗
Commit: 9800e51 ↗
Source identifier: C27BB559-28C5-4924-A7DA-3BF04CD02C8F

Additional source files 2

Solutions/SenservaPro/Analytic Rules/BlockLegacyAuthentication.yamlsource ↗Solutions/SenservaPro/Data/Solution_SenservaPro.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.