Forum Discussion

Copper Contributor

Aug 16, 2017

Is it possible to implement captcha on ADFS sing-in form page ?

We have ADFS Proxy servers (Web Application Proxy servers) in our perimeter network and have MFA configured. We also have configured a very strict ADFS Extranet Account Lockout policy (3 bad passwor...

Jason Boroff

Copper Contributor

Aug 16, 2017

We are currently experiencing frequent account lockouts from our ADFS servers. We have tracked the offending authentication attemps to other countries. We have tried working with MS portal support, but did not get any where.

We also have adjusted out ADFS Extranet lockout settings to no availe.

We too are wondering about:

MFA first for external authentication (having it second still allows multiple bad attempts)
Possible use of CAPTCHA (or something similar)
Setting some kind of geo-location limits to authentication

Pié

Microsoft

Sep 15, 2017

Note that ADFS 2016 supports Azure MFA as a primary factor for authentication:

- Configure AD FS 2016 and Azure MFA https://docs.microsoft.com/en-ca/windows-server/identity/ad-fs/operations/configure-ad-fs-2016-and-azure-mfa

ADFS 2016 also support Windows Hello for Buisness as primary authentication too.

You can also use certificate based authentication as a primary factor for external authentication. This works since ADFS 2.0.