Thank you for contacting Syncfusion support.
We regret to inform you that, there is no Microsoft's PasswordBox like control included in our library. Already we have logged feature request for this. It will be included in any of our upcoming release. We have checked for the implementation of Password box but since the Framework already contains a control PasswordBox, can you please let us know your additional requirements in addition to the MS PasswordBox control?
Based on this we will plan for the implementation of our Password box control.