Microsoft’s Azure AD Password Protection can be integrated into your on-premises network. You need to set up the infrastructure on your existing domain to integrate the password protection. The software doesn’t create or require accounts in the AD domains that it protects. It doesnt make your network insecure, but its possible to check for breaches against a database of known password hash values to ensure that passwords are not used in your network. For example, Azure AD password protection is not required for AD password sync and is only enforced where the password is enforced.”]