Hey,
This is Gonto. I'm the VP, Marketing and Growth at Auth0. I want to assure you that in no way is Auth0's platform insecure, or is any customer domain at risk. This is not a vulnerability, a flaw, nor is there anything to be patched. To learn more about this, please check our blog post: https://auth0.com/blog/phishing-attacks-with-auth0-facts-fir...
Thanks!