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Unfortunately yes, Trend Micro is detecting cloudfront.net as possible thread for some reason and we use their CDN (Content Delivery Network) to host the external resources.
I would recommend to mark it as allowed - as not a threat in order for you to be able to see the forms properly.
Hopefully they will resolve the issue soon so the resources will be loaded properly.
I noticed that the site works fine when using https:// but if using http:// that's when Trend throws the alerts.