If you want to access Challenger Login, you can access the website directly using the list below.
https://app.challengercme.com/
https://www.challengercme.com/
https://app.challengercme.com/FullTrial/53
https://www.challengerschool.com/
https://www.challenger.com/login/
https://www.challenger.com.sg/login
https://portals.gesd40.org/challenger
https://system.challenger-lighting.ie/
https://www.challenger.com.au/adviser