Disabled MFA to Bypass Authentication Mechanisms

calendar Jul 3, 2026 · attack.credential-access attack.persistence attack.defense-impairment attack.t1556  ·
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Detection for when multi factor authentication has been disabled, which might indicate a malicious activity to bypass authentication mechanisms.

Sigma rule (View on GitHub)

 1title: Disabled MFA to Bypass Authentication Mechanisms
 2id: 7ea78478-a4f9-42a6-9dcd-f861816122bf
 3status: test
 4description: Detection for when multi factor authentication has been disabled, which might indicate a malicious activity to bypass authentication mechanisms.
 5references:
 6    - https://learn.microsoft.com/en-us/azure/active-directory/authentication/howto-mfa-userstates
 7    - https://learn.microsoft.com/en-us/entra/identity/monitoring-health/reference-audit-activities#core-directory
 8    - https://research.splunk.com/cloud/482dd42a-acfa-486b-a0bb-d6fcda27318e/
 9    - https://analyticsrules.exchange/analyticrules/65c78944-930b-4cae-bd79-c3664ae30ba7/
10    - https://www.elastic.co/docs/reference/security/prebuilt-rules/rules/integrations/azure/persistence_entra_id_mfa_disabled_for_user
11author: '@ionsor'
12date: 2022-02-08
13modified: 2026-04-30
14tags:
15    - attack.credential-access
16    - attack.persistence
17    - attack.defense-impairment
18    - attack.t1556
19logsource:
20    product: azure
21    service: auditlogs
22detection:
23    selection:
24        operationName: 'Disable Strong Authentication'
25        properties.result: 'success'
26    condition: selection
27falsepositives:
28    - Authorized modification by administrators
29level: medium

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