Hi Annadel,

Thank you for the details provided.

I changed this ticket thread to a Feature Request. Here is the public item created for the case:

• https://feedback.telerik.com/aspnet-mvc/1611830-strong-password-checker-on-mvc-textbox

I added a vote on your behalf. The most voted suggestions are considered for implementation.

In order to achieve the desired result by using a custom implementation, I would recommend extending the Kendo UI Validator:

• https://demos.telerik.com/kendo-ui/validator/custom-validation

The following forum threads provide further information about the specifics of the validation:

• https://stackoverflow.com/questions/6151576/how-to-check-password-strength
• https://stackoverflow.com/questions/75057/what-is-the-best-way-to-check-the-strength-of-a-password

I hope this information helps.

Kind Regards,
Anton Mironov
Progress Telerik