# Custom Dual Security

**URL:** <https://forum.radzen.com/t/custom-dual-security/3401>\
**Category:** Blazor Server\
**Created:** [April 27, 2020, 9:17pm UTC](https://forum.radzen.com/t/custom-dual-security/3401 "2020-04-27T21:17:17Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![kgordon](https://forum.radzen.com/user_avatar/forum.radzen.com/kgordon/32/2245_2.png) [@kgordon](https://forum.radzen.com/u/kgordon)\
**Post date:** [April 27, 2020, 9:17pm UTC](https://forum.radzen.com/t/custom-dual-security/3401/1 "2020-04-27T21:17:17Z")

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I'm building a system that has some users that are part of an Office365 domain and others that are outside that domain. Is it possible for me to customize security so that the Office365 users authenticate against the domain and the others use the standard identity login. If so, where do I need to start the customization?

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**Author:** ![korchev](https://forum.radzen.com/user_avatar/forum.radzen.com/korchev/32/4_2.png) [@korchev](https://forum.radzen.com/u/korchev)\
**Post date:** [April 28, 2020, 5:49am UTC](https://forum.radzen.com/t/custom-dual-security/3401/2 "2020-04-28T05:49:35Z")

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Hi @kgordon,

Radzen does not support this requirement. An application ca have either Active Directory security (but not Office 365 domains) or ASP.NET Core Identity based. You would need an entirely custom implementation. Unfortunately we haven't done anything similar and cannot do specific instructions.