Restrict Content Pro

I just got a dashboard notification saying “iThemes Security Pro Now Integrates with Restrict Content Pro. See what's new” but the “See what’s new” button led to a 404 on the iThemes homepage. I have questions:

1. What is Restrict Content Pro? I’ve never heard of it.
2. Does this affect the free version of the plugin? If so, where are the controls for it?
3. Is this integration enabled by default?
4. Does it collect personal information, such as IP addresses?
5. Does it transmit any personal information to third parties or external servers? If so, what privacy policy or policies apply?

Communications with external services may present GDPR issues or compliance problems for other privacy laws, so we need to know this clearly.