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    Phishing-Resistant MFA Downgrade Detection

    avatar
    GlassDiceBearhttps://www.dicebear.comhttps://creativecommons.org/publicdomain/zero/1.0/„Glass” (https://www.dicebear.com) by „DiceBear”, licensed under „CC0 1.0” (https://creativecommons.org/publicdomain/zero/1.0/)
    Ibrahim Saud@tektrix
    •updated Jun 21, 2026•0•0•4

    Detects deletion of a phishing-resistant authentication method followed by registration of a less secure phone or software token method for the same account.

    Sigma

    Tags

    T1556 - Modify Authentication ProcessT1562.010 - Downgrade AttackTA0006 - Credential AccessTA0005 - Defense EvasionTA0003 - PersistenceAuthentication AttemptCredential AccessAdmin ActivityAzureAzure Activity Logskqlattack.persistenceattack.t1556

    Found in

    • Storm-2949 Cloud Infrastructure and Identity CompromiseLast updated May 19, 2026

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