MFA interfering with REST API Calls?

Summary:

We just noticed Oracle is pushing all authentication of fusion platforms to its single sign on page, and starting to use MFA. We also noticed it is interfering with API calls if we are using the standard authentication. Does this mean we will have to switch to OAuth to prevent integration failures? Any documentation/announcement on when and how Oracle is releasing these across fusion? We didn't receive any notifcation before it happens, and the integration took a pretty big hit.

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