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📔 Michael Grafnetter

@MGrafnetter • 4,043 subscribers

Principal Security Researcher @SpecterOps, Microsoft MVP Identity & Access + Enterprise & Platform Security

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CVE-2026-34348 exploitation demo from my #BHUSA "Pass-the-Passkey Family of Attacks" talk: WebAuthn assertion from recent YubiKey authentication is extracted from Windows Event Log and replayed against Microsoft Entra ID using Passkey Injector. Whitepaper:
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CVE-2026-34348 exploitation demo from my #BHUSA "Pass-the-Passkey Family of Attacks" talk: WebAuthn assertion from recent YubiKey authentication is extracted from Windows Event Log and replayed against Microsoft Entra ID using Passkey Injector. Whitepaper:

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