-Smart lockout helps lock out bad actors that try to guess your users' passwords or use brute-force methods to get in. Smart lockout can recognize sign-ins that come from valid users and treat them differently than ones of attackers and other unknown sources. Attackers get locked out, while your users continue to access their accounts and be productive. Organizations, which configure applications to authenticate directly to Azure AD benefit from Azure AD smart lockout. Federated deployments that use AD FS 2016 and AD FS 2019 can enable similar benefits using [AD FS Extranet Lockout and Extranet Smart Lockout](/windows-server/identity/ad-fs/operations/configure-ad-fs-extranet-smart-lockout-protection.md).
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